Science and Intelligent
Design
(the long version)
some introductory comments:
This is the original version (May 2001) of
Sections 7A-7G in my
Overview of Origins Questions for Science and Theology.
Our questions about Science
and Intelligent Design are
important, so
initially I gave them the attention (and the writing space) they deserve.
Then, in August 2001, I condensed the main ideas from this version
to make the medium-short and medium-long versions that are
14% and 29% the size of Sections 7A-7G in this page.
7A. What is design?
7B. Can we prove design?
7C. Can design be scientific?
7D. The Freedom of Open Science
7E. The Problems of Closed Science
7F. Cultural-Personal Factors in Science
7G. Can evolution be scientific?
In Section 7A (What
is Design?),
In this page, 7A is similar to what's in
the Main Overview, but here it's more detailed.
design of the universe
(connecting Sections 3 and 7A)
In Section 7B (Can design be proved?),
Details (and examples) to supplement
design by natural process (which in the Overview was moved
into 7E), distinguishing between a design theory and design, and the mental
act of design and physical act of design.
WHY a scientific theory cannot
be proved or disproved and the concept of theory status.
Theory evaluation by eliminative
testing and comparative testing.
An extreme example (with super-intelligent
space aliens!) of design denial.
Current Probability and
Future Variability and two possible effects of future knowledge with
"origin of life" examples.
"The main goal
of science is to find truth, but [sometimes] claims that we have found
the truth should be made with cautious humility."
In Section 7C (Can design be scientific?),
Of the 7 sections (7A-7G), I think this
section is the most worthy of a complete reading, in terms of overall added
value.
Why is design controversial?
(it's metaphysics, not methodology)
A "two worlds"
example of unavoidable error. (from Paul Nelson)
Is science a search
for truth? Although it's not the only goal, for most scientists "constructing
accurate theories about nature" is an important goal.
Historical judgments about design can
be reversed.
Is science a game with rules? A "strong
man" example from ESPN.
Positivism, Part 1:
regarding observability, with historical analysis by Laudan.
The logic of historical
science: deduction, prediction, postdiction, retroduction, and hypothetico-deduction
(using agreement and predictive contrast), repeatability and controls.
Is supernatural agency
possible?
Evidence and Testing:
counterflow (from Del Ratzsch), and an unusual relationship while testing.
Mechanisms (necessary?)
and Matching (of claims with methods).
Information (concepts, examples, details)
about Supplemented Theories + Design and Creation.
A summary of ideas
from Section 7C.
A reminder: reading this whole section
may be worthwhile.
In Section 7D (The Freedom of Open
Science),
A Goal and Strategy, Problem
and Solution.
A theory of design can
improve our confidence in a theory of non-design.
Responses to design before
history and during history are different. And severe
criticism is acceptable unless design is proposed.
More about Behe's correspondence
with journals.
Intrinsic Status and
Relative Status plus Criticism, Competition, and Confidence
(in non-design).
A creative tension between perseverance
and flexibility: If the keys are not in the kitchen, can you find them in
the kitchen?
What scientists can search for in the
second stage of design research.
Positivism, Part 2:
Yes, "Scientists cherish their freedom of thought."
(So why do they accept MN?)
Should we ask the question?
Before we are justified in asking, do we need proof? Mike Behe responds.
A Process of Change:
thoughts about some reasons (intellectual and practical) for opposing design.
In Section 7E (The Problems of Open
Science),
Science as an expert witness
but not judge and jury. But does MN make science a potentially hostile
witness?
Shifting from "science
is not a search for truth" to "science is our best method for finding
truth."
Converting methodological
naturalism into metaphysical materialism. Scientism
and "explaining God and religion" with MN-Science.
A more in-depth look at hidden
arguments and open discussions.
In Section 7F (Cultural-Personal
Factors in Science),
The ideas here are similar to those in
the Main Outline, exept in more detail, especially in Recognize
and Minimize.
In Section 7G (Can evolution be
scientific?),
As in Section 7F, the ideas here are similar
to those in the Main Outline, exept in more detail.
And there is a subsection with details
about historical science: evolutionary retroductions (including scenarios,
goals, and levels), observations, and predictions.
And a variety of topics to be written about
later.
7A.
What is a theory of design?
( the title has been changed to "What
is design?" )
Imagine that you receive a radio signal
-- 2, 3, 5, 7, 11, 13, 17, 19, 23, 29,... -- and you think it is extremely unlikely
that this long string of prime numbers was produced by a natural cause that
wasn't intelligently directed. Your conclusion that "the cause of
this feature (the signal) involved intelligent design" was reached by a
scientific process, by a logical analysis of empirical data. Your scientific
thinking began with data, with observations of the signal. Next, you creatively
constructed a variety of tentative theories (by imagining various explanations
involving either design or non-design) and critically evaluated each theory,
then you reached a conclusion that design was the most plausible explanation.
Your theory about the signal is analogous
to other theories of intelligent design
proposing that a particular feature (which is defined broadly to include any
type of phenomenon, any object, attribute, system, or event) was not produced
by undirected natural process, but was the
result of intelligent design and directed action.
In the area of origins, design theories are being proposed to explain the origin
of life and complex life and (before the history of nature began)
the universe.
Can a theory of design
be scientific? As described above, the process of proposing and evaluating
a design theory involves a scientific analysis of observations. And logic
demands that, during any intellectually rigorous attempt to explain the origin
of an observed feature, scientists should consider all possibilities.
The feature could have been produced by: 1) undirected
natural process; 2A) design and construction
with intelligent design by a natural agent (a human,...) and construction using
directed natural action (such as shaping a mountainside with dynamite and chisels
to make a sculptured face); 2B) design and creation
with intelligent design by a supernatural agent and creation using directed
supernatural action. A basic theory of design
proposes only that a feature was intelligently designed by an agent and was
produced by directed action; this "design only" theory, instead
of trying to distinguish between 2A and 2B, proposes "either 2A or 2B"
and makes no claims about the identity of the agent or the characteristics of
the action.
Another type of theory,
design of the universe, proposes design to explain
why the natural properties of our universe -- its initial conditions (amount
of matter/energy, rate of expansion following the Big Bang,...) and characteristics
(interactive forces, wave-particle duality, values of constants,...) -- are
"just right" for features (nuclei and sunshine, water and DNA,...)
that allow life. A theory of design and natural
process proposes that the universe was designed so natural process would
not just allow the operation of complex physical and biological structures,
such as stars and life, but would also produce some of them (or all of
them) by undirected natural process, after the design-directed action that produced
the universe.
7B.
Evaluating Design with Confidence and Humility
( the title has been changed to "Can
design be proved?" )
Proponents of intelligent
design (ID) claim that, based on a logical
analysis of empirical data, we can distinguish between two types of causes:
undirected natural process, and intelligent design followed by design-directed
action. William Dembski (1999) describes two methods
for inferring design, by elimination and competition: A) an eliminative
explanatory filter can distinguish between necessity,
chance, and design, in order to identify features that have a low probability
of being produced by undirected natural process; B) a competitive inference
to the best explanation compares the relative explanatory
power of ID theories and non-ID theories.
When scientists evaluate a theory of non-design, which proposes that a particular feature was produced by undirected natural process, their conclusions about the theory can range from "very plausible" to "definitely not plausible" and anything in between. Let's examine the two extremes:
IF
NON-DESIGN SEEMS PLAUSIBLE
Two Questions, Three
Actions, and Mutual Exclusion
If scientists are certain that a feature
could be produced by undirected natural process, what can they conclude about
design? It depends on the question being asked.
Two Questions
A design question: Was
design-directed action involved in producing the feature?
A design theory question:
Is it scientifically justifiable to claim the feature shows detectable "signs
of design" indicating that design-directed action was involved in producing
it? / Unless otherwise specified, a design
theory claims there is scientific evidence (i.e., empirically
detectable signs of design) supporting a theory that a particular
feature was produced by design-directed action during
the history of nature. { This definition is used throughout
my overview, except in rare cases where the context indicates that another meaning
is intended.
Three
Actions
To show why answers can be different for
the two types of questions, re: design and design theory, consider four possible
scenarios for design-directed action (or a lack of it) in producing a feature:
2AB. The feature shows detectable signs
of design, and was produced by design-action during history. { e.g., the
faces on Mt Rushmore }
1A. The feature does not show detectable
signs of design, and was produced by undirected natural process, but this natural
process was possible due to design-action at the beginning of history.
{ This would occur if the universe was intentionally designed so it would naturally
produce the feature. }
1B. The feature does not show detectable
signs of design, and was produced by design-action during history. { An
appearance of undesign is the goal in movies when "special effects"
are used to make an artifact, such as a cinematic representation of a tornado
or tidal wave, look like the real thing. Or a feature might have been
produced with no concerns about whether or not any signs of design would be
detectable. If design-action is undetectable and theistic, it is normal-appearing
guiding theistic action.
1C. There was no design. The feature
was produced by undirected natural process, and the universe was not designed
to naturally produce the feature, so there was no design.
The first three scenarios (2AB, 1A, 1B)
involve design, but the two requirements of a design theory -- detectability
and action during history -- are met by only 2.
In 1B the characteristics of design are not detectable, and in 1A neither requirement
is satisfied. {although evidence for "design of the universe"
The table below shows the logical outcomes
for two realities and two theories. Two possible realities are that "detectable
design-action in history" did occur (as in 2AB) or did not occur (in 1A,
1B, or 1C). A design theory claims "it did occur" while a non-design
theory says "it did not occur" and denies the claim for design.
DESIGN theory:
a claim for detectable design-action in history. |
NON-DESIGN theory:
a denial of detectable design-action in history. |
|
With 2AB,
there is detectable design-action in history. |
The claim (made by
a design theory) is TRUE. |
The denial (made by
a non-design theory) is FALSE. |
With 1A, 1B, or 1C,
there is no detectable design-action in history. |
The claim is FALSE,
even if (as in 1A or 1B) design-action did occur. |
The denial is TRUE,
even if (as in 1A or 1B) design-action did occur. |
The table body points out that a theory
is TRUE if it matches reality, and is FALSE if it doesn't. The purple
text shows that the correct answers can differ for questions about a
design theory and design. Even if a design theory (claiming detectable
design-directed action during history) is false, it is possible that design
did occur, with undetectable design-action either at the beginning of history
(1A) or during history (1B).
Now we can answer the question that began
this subsection, re: what scientists can conclude. If scientists were
certain that a feature could be produced by undirected natural process, a theory
of design -- which claims that the evidence supports a conclusion of design
-- would be scientifically falsified. The scientists
could justifiably claim that "there is no detectable design" and "maybe
it was not designed," but they could not logically conclude that "it
was undesigned" because the feature might have been designed in a way that
would make it appear to be undesigned.
In other words, a theory of design
(claiming evidence for design-action) could be scientifically falsified,
but a more general theory (claiming an occurrence of design-action, either
detectable or undetectable) could not be falsified, and a theory of "total
non-design" that denies any occurrence of design (either detectable or
undetectable) could not be proved true.
And, of course, we could reject a theory
of detectable design for one feature, but accept detectable design as a plausible
explanation for another feature.
some thoughts about timing: A
mental act of "design" usually precedes the physical act of
design-directed action.* The timing between mental and physical acts can
be small or large. For example, a creationist who claims that design was
involved in the origin of stars (with production by natural process) and the
first life (with production by non-natural process) might propose that the mental
act of design occurred before the beginning of history, so the properties of
our universe (nuclear forces, gravity,... for stars; and for life, the chemical
characteristics of carbon, oxygen, sodium, potassium,..., and of DNA, enzymes,
water, nerve fibers,...) would, at a much later time, allow a natural production-and-operation
of sunshine and a naturally continuing operation (following the miraculous initial
production) of life.
* a question to ponder: In situations like
musical improvisation, does a mental act always precede (even if by a tiny split-second)
the physical act that produces the music? { Theologians disagree about
whether God "improvises" during the history of nature, in formative
history or human history. }
Mutual Exclusion
In Sections 7B-7D, design
and non-design will refer to theories that
affirm or deny a claim for empirically detectable design-directed
action during the history of nature. When this definition is used,
design (in scenario 2AB above) and non-design (in 1A, 1B, or 1C) are mutually
exclusive. Either design was involved in producing a feature, or it wasn't.
In principle, the logic of mutual exclusion
is simple. But in practice, we cannot be certain when we try to estimate
the extent to which signs of design are empirically detectable, as discussed
in the rest of this section.
The following subsection is a summary (from the Introductory Overview) of the "1A-1B-1C, 2A-2B" numbering system, plus a table (from the Main Overview) summarizing the characteristics of these five theories:
Design by Natural Process
There are three types of design.
Usually, a design
theory is a claim for design-directed action that
is empirically detectable and occurs during history.
This is the meaning in Sections 7B-7D, and in the design theories (2, 2A and
2B) of Section 7A.
But production of a feature by "non-design"
(by what appears to be undirected natural process) could be due to: 1A)
design-directed action that occurred at the beginning
of history (in a design of nature),
1B) design-directed action that is empirically undetectable
and occurs during history, or 1C) a process that is undesigned
and undirected.
Evidence against detectable
design (2A or 2B) is not evidence against design
by natural process (1A or 1B). .....
Creationists propose three types of design
(2B, 1A, 1B), while theistic evolutionists propose only design by natural process
(either 1A or 1A-and-1B).
This table shows that: a theory
is a non-design theory if either condition (empirically
detectable, occurs in history) is a no; the
origin of a feature can involve design even if
a "design theory claim" is not justified.
empirically
detectable? |
occurs in
history? |
involves design? |
||
non-
design theory |
1A
|
no
|
no
|
YES
|
1B
|
no
|
YES
|
YES
|
|
1C
|
no
|
YES
|
-
|
|
design
theory |
2A
|
YES
|
YES
|
YES
|
2B
|
YES
|
YES
|
YES
|
I've constructed this list
in order to emphasize two main points.
First, doesn't it seem intellectually rational
to consider all possibilities? (of course, these include design, in 2A or 2B)
Second, even though the logical relationship
between design and non-design is relatively simple (they are mutually exclusive,
in the reality of "what is"), in the domain of "what we
know" things are more complicated. Yes, due to their mutual exclusivity,
the status of design increases when the status of non-design decreases.
But there are three types of non-design (1a-1c), and scientists usually evaluate
only current theories (1a) but not the other two categories, so "non-design
as a whole" -- which includes current design (1a) and noncurrent non-design
(1b, 1c) -- is not being evaluated. Therefore, options are available if
new evidence indicates that current theories (1a) are less plausible than previously
believed. A scientist can choose to increase the status of either design
(2A, 2B) or noncurrent non-design (1b, 1c). There is plenty of room for
interpretive flexibility. In addition to vigorous debates about the status
of current theories (1a), there is uncertainty about future theories (1b) or
no theory (1c). Because there is so much flexibility, could the adoption
of any design theory ever be logically warranted? It will be easier to
examine this question if we focus on a specific type of theorizing, our efforts
to explain the origin of life. This begins soon, following a few comments
about the list of five possibilities.
{ comments: Each possibility in the list
is actually a category that contains a number of sub-possibilities which may
differ in important ways. For example, an appearance of "undirected
natural process" could be due to chance in
an undesigned universe, or design and natural process
in a designed universe, or design-directed action
that is empirically undetectable, as explained earlier.
There are also other possibilities, such as "supernatural design and natural
construction," so this list is not complete. But we can say that
"Scientists should consider at least five types of possibilities, and maybe
more." }
An Opportunity for Design
and Denial
An opportunity for an empirically plausible
theory of design is the origin of the first carbon-based life on earth.
Why? Because all current theories for the natural chemical evolution of
lifeless chemicals into a living organism seem highly implausible. After
evaluating numerous theories for a natural origin of life, could scientists
rationally conclude that carbon-based life did not originate by undirected natural
process? Yes. Even though certainty is impossible because we can
never propose and test all possibilities for natural process, scientists could
achieve a rationally justified confidence that their search has been thorough
yet futile, and no promising approaches remain unexplored. Or they might
discover scientific principles, analogous to the principles of thermodynamics
indicating the extreme improbability of a perpetual motion machine, that indicate
the extreme improbability of a natural process ever producing carbon-based life.
But tenacious critics
of ID can always find ways to avoid this conclusion. They can use methodological
naturalism as an excuse to bypass the process of science and declare that
a naturalistic non-ID theory must automatically be the scientific conclusion,
whether or not this conclusion is supported by scientific evidence. Or
they can point to possibilities for a future theory (1b) or no theory (1c) in
order to forever deny a conclusion of design, no matter how advanced is the
state of knowledge. For example, imagine a scientific community composed
of trillions of super-intelligent space aliens (IQ = 20,000) each with a life
span of a billion years, devoted to science (and using high-speed travel to
explore a wide variety of environments throughout the universe) for the past
5 billion years, who have not yet constructed a plausible theory for a natural
origin of life. Even in this situation a denial of design would be possible,
but would it be rational?
In the near future, however, the actual
state of humanly generated knowledge will remain much less advanced, and critics
of ID will point out, with some justification, the reasons for cautious humility
when making claims for design.
Current
Probability and Future Variability
The current state of human knowledge
is admittedly incomplete, compared with "everything that could be known,"
so there is a logical basis for defending non-design. In fact, a perpetual
denial of design seems possible because, when evaluating a claim for non-design,
we use plausibility estimates that have two dimensions: current
probability and future variability.
Imagine that, for a particular feature,
our current estimate for the probability of non-design is 1%. Since non-design
and design are mutually exclusive, the probability of design is 99%. This
sounds impressive, but is it conclusive? No. Even if proponents
of non-design agree with these current estimates of probability, they can point
to the potential for variability in our future estimates. If our current
state of knowledge in this area is fairly low -- if we don't know much compared
with what could be known (or even if we're only missing a few key ideas or pieces
of data) -- then in the future our probability estimates might be very different.
A defender of design can claim that the potential for future variability is
large, so in the future the probability of non-design might be anywhere from
0% to 100%. Perpetual denial is possible because, no matter what the plausibility
of non-design is now, we don't know with certainty what it will be later.
{ This probably sounds familiar, because it's just a different way to look at
the four types of non-design: the current probability is
for 1a, and future variability depends on the total probability for 1b + 1c.
}
If variability is unlimited, anything could
happen in the future. But in a realistic extrapolation of science into
the future, we must place logical constraints on our estimates for variability.
If an estimate of future variability is to be practical and useful, it should
be based on scientific estimates of what is probable, not wild speculations
about what is possible. For example, scientists can look at the
specific properties (the unfavorable chemical equilibria, the biological requirements
for metabolism and reproduction,...) that make a natural origin of carbon-based
life seem implausible, and try to imagine specific ways in which future advances
in knowledge might change our views of each property. They can ask, "How
likely is each change, and how would it affect our evaluations for a natural
origin of life?"
Improving
our Estimates of Future Science
When we are estimating the potential
for future development of non-design theories, we need better ways to estimate
thoroughness (of the search that produced our current state of knowledge)
and possibilities (for future improvements in knowledge). To do
this we must predict the future plausibility and explanatory power of current
natural theories after they are more fully developed, predict the new theories
that might be developed, and consider the possibility that we may never develop
a natural theory for a natural event that actually occurred. The goal
is to estimate the total plausibility of non-design, including both current
non-design and (in our extrapolations into the future of science) noncurrent
non-design. As described above, we should think in a disciplined way,
in an effort to estimate what is probable in reality, not just what is possible
in our imaginations.
An epistemological extrapolation to predict
future scientific progress will require extensive effort with a high degree
of creativity (in imagining what could be) and criticality (in making realistic
extrapolations). Doing this well won't be easy, but it should be a high
priority for those who are serious about exploring the strengths and weaknesses
of a particular design theory, who want to avoid the simplistic extremes of
insisting that in the future either "nothing new will happen in science"
or "anything could happen."
Two
Possible Effects of Knowledge
Will increased knowledge reduce the
plausibility of a design theory? Maybe. Future developments in science
might lead to new evidence supporting non-design, or it might confirm our doubts
about non-design. Both possibilities have occurred in the history of research
about chemical evolution:
In 1953, plausibility estimates for a non-designed
natural origin of life were higher than in 1952, because the Miller-Urey experiments
showed that inorganic chemicals could be converted into small biomolecules such
as amino acids. Many scientists assumed that we would soon discover how,
on the early earth, a reactive atmosphere had produced large biomolecules that
transformed themselves into a simple living cell which could then evolve and
increase in complexity.
Since then, however, the warm glow of optimism
has been cooled by the harsh reality of improved scientific knowledge.
Now we think the early atmosphere was much less reactive than originally assumed,
and we recognize the many difficulties in a pre-life synthesis of biomolecules,
so visions of a "rich organic soup" (or an "RNA World" or...)
have been crushed. And due to rapid advances in molecular biology, now
we know more about the remarkable complexity of a "simple" living
cell. What seems possible (for the formation of biomolecules in a pre-life
environment) has decreased, but what seems necessary (to produce the simplest
living organism) has increased. Therefore, the distance between what is
possible (before life) and what is necessary (for life) seems much greater now
than in 1953. An increase in knowledge has strengthened the scientific
support for a theory of design. In the future, if our level of knowledge
continues to improve, and if our estimates for the plausibility of a natural
origin of life remain as low as they are now, a claim for design will become
even more strongly supported.
A non-design origin of life seems less
plausible now than in 1953. For similar reasons, new knowledge has also
strengthened theories of design in other areas. For example, claims about
irreducible complexity are built on the foundation of our
increased knowledge in molecular biology, which has opened the "black box"
of the cell for in-depth critical examination. And most of the evidence
for a designed universe has been recognized in the past few
decades.
Although advocates of non-design usually
imply that future science will support their own claims, this is not necessarily
true. There is nothing automatic about the effects of future science.
New research might reveal how a feature was produced by non-design, or it might
reinforce our criticisms of non-design. Which of these two scenarios is
more likely? This question should be the focal point of an intensive "extrapolation
into future science" that effectively combines creativity with criticality,
that begins with an open mind and tries to objectively evaluate all possibilities.
Some
Reasons for Humble Caution
During an evaluation of design, rational
disagreements among conscientious scientists can occur in three areas:
A) estimating the probability that a particular non-design process could produce
a feature, B) deciding a threshold for a "low probability" of
non-design that warrants a claim for design, and C) deciding whether it
is reasonable to claim "a rationally justified confidence that the search
[for natural explanations] has been thorough yet futile, and no promising approaches
remain unexplored."
Until our knowledge and skill has improved
in each of the three areas of disagreement, it seems wise to adopt a humble
attitude in making claims about what we know and how surely we know. For
example, bold pronouncements that a natural evolutionary development of all
biocomplexity "is a fact" or "has no support" would not
seem justified. Instead, a humble recognition of uncertainty should provide
a reason to express our conclusions cautiously and hold them lightly.
I think the main goal of science is to find truth, but claims
that we have found the truth should be made with cautious humility, at least
in areas (like biological evolution) where there is some evidence for and against
each of the competitive theories.
An Inference to a Reasonable
Conclusion
A theory of intelligent design is empirically
responsive and can be falsified. By contrast, a non-ID theory claiming
"ID is wrong" could not be falsified in the mind of anyone who, with
rigid tenacity and unbounded optimism for future science, would never (under
any circumstance, no matter what the evidence was) abandon a claim that "They
can't prove a natural cause is impossible."
But proof is not necessary, because among
scientists the standard for acceptance is a rationally justified confidence,
not certainty. Instead of asking if design can be proved using formal
logic, we can ask "Is design a plausible explanation?" We can
compare the status for all competitive theories, whether they postulate design
or non-design, and instead of feeling it is necessary to make an immediate yes-or-no
decision either to adopt ID as the best explanation or to reject it,
we can think flexibly and rationally by accepting ID as one of several medium-status
alternatives, as an inference to a reasonable explanation.
Yes, in the near future, scientists will
have widely varying estimates for the plausibility status of design. But
this is not a cause for concern, because disagreement among scientists can be
a healthy way to stimulate thinking and research by advocates for different
points of view. Empirically based logical analysis shows that some design
theories are worthy of serious consideration, that further development of these
theories is logically justified. Therefore, it is rational to conclude
that the potential of design theories to make valuable scientific contributions
should be recognized and welcomed.
7C. Can a design theory
be scientific?
( the title has been changed to "Can
design be scientific?" )
Even though a claim for design can be supported
by the methods of science, by a logical analysis of empirical observations,
some people claim that a design theory is inherently non-scientific. Why?
This section examines arguments for considering design theories to be nonscientific,
along with counter-arguments.
Why
is design controversial?
Imagine that, as in Contact
(the novel and movie by Carl Sagan), scientists observe a signal containing
a series of prime numbers, and they propose a design theory to explain the signal's
origin. Nobody would dispute the scientists' right to propose this theory,
and there would be no controversy about whether or not their proposal is authentically
scientific.
In most ways, a design theory to explain
prime numbers (or the stone faces on Mt Rushmore) is logically equivalent to
a design theory to explain the first life. In one way, however, there
is an important difference, which explains why one theory is calmly tolerated
while the other is a topic for intense debate. From experience we know
that human intelligence and technology can produce signals and sculptures, so
for these features design-and-construction by humans (or by space aliens with
adequate intelligence and technology, or...) seems plausible. But if there
was no intelligent life in nature to design and construct the first life, a
theory of design seems to imply design-and-creation. This is a cause for
concern among some scientists and nonscientists, for reasons discussed in the
rest of this section, even though design-and-construction theories are not controversial.
What
are the limits of science?
When deciding how to define science
and its methods, we can choose to restrict the freedom
of scientists by requiring that scientific theories should postulate only
natural causes. This proposed limit is methodological
naturalism (MN). A second limit
follows logically: If MN is accepted, and if an event actually does involve
a non-natural cause, then any scientific description of this event (in terms
of only natural causes, as required by MN) is guaranteed to be incomplete or
incorrect. This logical conclusion is humility about
methodological naturalism (MN-Humility).
Each limit answers a question. For
MN the question is "What are the limits for what can claim to be science?",
and the answer is a proposal. For MN-Humility the question is "What
are the limits for what a restrictive MN-science can claim to explain?",
and the answer is a logical certainty.
Should we accept methodological
naturalism?
In 1998, I was willing to support either
of two options: 1) reject MN and include design in science, or 2)
adopt MN but also adopt MN-Humility by explicitly acknowledging the limitations
of MN-science. Here is how I summarized the limits of what MN-science
should be allowed to claim:
"We can view
a restricted MN-science as one aspect of a broader 'search for truth' that considers
all possibilities without imposing metaphysically biased restrictions on theorizing.
In this open search for truth, what is the role of MN-science? It can
be a valuable resource that should be respected as an expert witness, but it
should not be the judge and jury when we're defining reality and rationality."
(Rusbult, 1998)
The remainder of Section 7C explains why,
two years later when I began to revise this overview, my views had changed.
Now I think that -- instead of accepting MN and then apologizing for its logical
deficiencies -- we are behaving more rationally if we simply reject MN.
If we are serious about searching for truth, it seems wise to adopt an Open
Science in which scientists always begin with MN, but do not insist that
it is logical to always decide, before looking at the evidence, that we should
end with MN.
One reason for rejection is that -- in
the scientific and educational communities, and in the public media -- there
is a consistent disregard for MN-Humility. Instead of explaining the logical
limitations of MN-Science, there is a strong implication that the conclusions
of Modern Science must be true because a non-scientific theory does not deserve
serious consideration in a modern society. This implication is widespread,
despite the logical inconsistency of using MN to bypass the process of science
and then claiming the authority of science as support for the unavoidable
conclusion required by MN (that "according to science the history of nature
was all natural") even if this conclusion would not be supported by the
process of science, by a logical analysis of observations and a critical evaluation
of all competitive explanations.
But the main reason for my change is practical
utility: I've become more thoroughly convinced that, since design theories
can be scientifically useful, science should include these theories instead
of automatically rejecting them, as demanded by MN.
Can a design theory
be scientific?
What is science? In the past,
attempts to define demarcation criteria -- which
claim to capture "the essence of science" and therefore to clearly
distinguish science from nonscience -- have not been satisfactory.
Despite these difficulties, some critics
of design want to use methodological naturalism as a decisive
demarcation test. They ask one question, "Does it violate MN?",
and consider the case to be settled. But is it really that simple?
This section has examined the main arguments
for enforcing MN and excluding design from science. Initially, these arguments
may seem credible, but when we inspect more closely the logic is less impressive,
and it seems less reasonable to exclude design from science.
Here is a brief review of the first part
of the section: a Closed Science, restricted by MN, might guarantee that
science will reach false conclusions; an Open Science allows, but cannot
guarantee, reaching correct conclusions; a theory of design can be scientifically
useful (because it might be true, it can promote a more accurate evaluation
of non-design theories, and it can stimulate creative thinking and action by
proponents of either design or non-design); design is not a science stopper
(in the actual practice of science), should be evaluated based on what it is
now (not what other theories were in the past), and should not be excluded by
citing the status quo (by assuming that current methods are necessarily the
best methods) or by the verbal equivocation of using "natural" with
two different meanings; there is no incompatibility between science and
occasional miracles; and since design does not require miracles, it does
not even explicitly violate MN.
When examined closely, a few of these arguments
(such as those about "natural science" being "natural" by
definition) seem rather trivial. Other ideas, especially those encouraging
us to think about the practical effects of an open science and a closed science,
are more worthy of serious consideration, if only because they can stimulate
productive thinking and interactions. Some concerns, involving scientific
methods of theory testing and evaluation, seem especially important and interesting.
These methodological concerns have been discussed in ten subsections:
Observable Effects, Historical Science, Personal Agency, Supernatural Agency;
Evidence and Testing, Testing and Falsifying, Design uses Scientific Logic;
Mechanisms and Matching, Supplemented Theories, Design and Creation. Here
is a summary of the main ideas:
because an unobservable cause can produce
an observable effect, scientific theories can postulate the existence of a cause
that cannot be directly observed;
in logical methodology and use of data,
a design theory is similar to other theories in historical sciences; strategies
for coping with the uncertainties of agency are similar, whether a personal
agent is natural or supernatural;
the main evidences for design are observable
"signs of design" that probably could not be produced by undirected
natural process; since design and non-design are mutually exclusive, their
plausibilities vary inversely, and testing for non-design is a way to test for
design; although design cannot be proved or disproved using formal logic,
scientists can develop a rationally justified confidence that design (or non-design)
is the best currently available explanation, or is at least a reasonably plausible
explanation; a theory of design is empirically responsive, and is therefore
testable, if its evaluative status can be changed (up or down) by empirical
data; when critics try to empirically refute a design theory, they are
confirming that the theory is scientifically responsive and testable;
scientists who propose design use the conventional
logic of MN-science, but question the wisdom of restricting science to the conclusions
required by MN; in some areas, such as forensic science, methods for testing
design theories have been developed and are commonly used;
a basic design theory does not propose
a mechanism for the directed action that produced a designed feature, but a
mechanism is not required for scientific utility; a design theory should
be tested for what it claims (that design occurred), not for what it doesn't
claim (that it can explain the details); a basic design theory can be
supplemented (with details about when, how, why, who,...) in many ways (theistic,
naturalistic, or pantheistic), and each theory (basic and supplemented) should
be evaluated on its own merits; theories of design and creation can be
related, but are not the same, and design does not necessarily imply creation;
a basic design theory is limited to claims that can be scientifically evaluated.
Conclusion
Can a design theory be scientific?
This section begins with reasons to say YES, and then explains why reasons for
saying NO do not seem logically justified. The more closely we examine
arguments for enforcing a rigid methodological naturalism in science, the better
"design as science" looks. This suggests that, instead of using
MN in a futile effort to separate science from nonscience, for each theory of
design we should ask, "Is it scientifically plausible?" and "Is
it scientifically useful?" These questions
are explored in Sections 7B and 7D.
7B: Based on their
analysis of observations, some scientists are wondering whether a theory of
"intelligent design and design-directed action" might be a plausible
explanation for the first life, complex life, or the universe itself.
Even though proof is impossible, can we develop a scientifically justified confidence
about the plausibility of a design theory?
7D: In our search
for truth, is MN always helpful? Should we reject a theory of design before
looking at the evidence, or should we consider the possibility that design is
a potentially reasonable explanation that is worthy of further development?
What are some benefits of an Open Science that has been liberated from the restrictions
imposed by MN?
7D. A Proposal for
Open Science
( the title has been changed to "The
Freedom of Open Science" )
Section 7B concludes that "the potential
of design theories to make valuable scientific contributions should be recognized
and welcomed." This section looks at some responses to design --
Has there been a warm, gracious, enthusiastic "welcome to our house"
reception, or is the door being jealously guarded by zealous gatekeepers of
knowledge? -- and explains why an Open Science would be scientifically and philosophically
productive.
A Goal and Strategy,
Problem and Solution
A Goal: A major goal of
science is to search for truth. When we ask, "Has the history of
the universe included both natural and non-natural causes?", we hope science
will help us find the truth.
A Strategy: Science should
answer this important question without doing any science.
A Problem: This strategy might
force science to reach wrong conclusions.
A Solution: Change the strategy
that is causing the problem.
According to a strategy of methodological
naturalism (MN), science must conclude -- before
the process of science begins -- that everything in the history of nature happened
due to natural causes. But if some events have involved non-natural causes,
some scientific conclusions are guaranteed to be wrong, yet there is no way
to escape these false conclusions. Since we want science to help us in
our search for truth, instead of leading to unavoidable false conclusions, this
does not seem rational. {details}
The essential weakness of MN is logical
inconsistency: MN claims to be logical, yet it demands that all scientists
should always assume that some possibilities don't exist, even though logic
demands that scientists should consider all possibilities.
Logically, an observed feature might have been produced by any of three causes:
undirected natural process, natural design and construction, or supernatural
design and creation. Consistent with this logic, an Open
Science recognizes all three possibilities. By contrast, a
Closed Science, restricted by MN, demands
that a theory of intelligent design (ID)
must be excluded from science because it permits either natural design (allowed
by MN) or supernatural design (not allowed by MN). In an Open
Science, with intellectual freedom not restricted, a scientist is
free to conclude that a particular feature was produced by either undirected
natural process or design.
Should science always
use the process of science?
In open science, a scientist can always
use the process of science -- a logical analysis of observations -- to reach
a scientific conclusion.
In closed science, a scientist -- restricted
by a rigid MN -- must bypass the process of science and declare that, no matter
what is being studied, "it happened by natural process." This
conclusion is immediate (since we won't be delayed by a process of careful scientific
investigation), automatic (it is logically unavoidable due to MN), and certain
(if no debate or doubt is allowed by the enforcers of MN). Reaching a
scientific conclusion without doing any science is certainly quick and efficient,
but is it wise and effective? Or will our search for truth improve if
a Closed Science is liberated to become an Open Science?
DESIGN
THEORIES TO EXPLAIN THREE ORIGINS
Before examining some of the characteristics
of open science, let's look at theories in three areas of science, proposing
a design of the universe, the first life, and complex life.
Design
of the Universe
Much of the evidence for a design
of the universe comes from astronomers and physicists. These discoveries
have been enthusiastically welcomed, partly because there is an underlying beauty
and balance in the properties of nature, and this appeals to the sense of aesthetics
in scientists. In addition, the relationship between ID and MN is different
for theories proposing design-directed action during the history of nature
(for example, to explain the origin of life) and design-directed action at
the beginning of history (to explain the origin of the universe and its
properties). Since most scientists agree about the facts, disagreements
are mainly about interpretations of what happened before the beginning of history,
and this is currently recognized as speculative by everyone involved.
In this area of science, theistic interpretations are allowed in scientific
and philosophical journals.
Design of Life
As discussed in Section
5, the conventional explanation for carbon-based life is that it began with
the evolution of lifeless chemicals into a living organism. Even though
current theories proposing an explanation for how life could arise by chemical
evolution seem highly implausible, this is "the scientific explanation"
for how life began. Why? Is it necessary to declare that the best
available naturalistic theory must be declared "the scientifically supported
proposal for truth" even if this theory is not well supported by scientific
evidence? Is this rational? Or should scientists also be allowed
to propose alternative theories?
Consider a theory of design, based on a
logical analysis of empirical data, claiming that a natural origin of carbon-based
life is extremely improbable, maybe impossible. Is this theory scientific?
If not, what would make it unscientific: a claim that a formation of life
by undirected natural process is extremely improbable? a perception that
this claim implies the operation of a non-natural cause? an explicit proposal
of a non-natural cause? Is
there any limit to the severity of criticism before a design theory becomes
unscientific?
If similarly severe criticism is accompanied
-- not by a proposal for design or creation, but for a new natural theory --
does this make it scientific? In 1991{?}, Graham Cairns-Smith wrote a
devastating critique of an "organic soup" version of chemical evolution,
and proposed his own "clay mineral" version. Scientific American
published his article, but I'm sure they wouldn't have seriously considered
a similar article concluding that "perhaps it did not happen naturally."
Or consider a tale of two books, The
Mystery of Life's Origins (Thaxton, Bradley, & Olsen, 1984) and Origins:
A Skeptic's Guide to the Creation of Life on Earth (Shapiro, 1986).
In many ways these books were similar: well written, scientifically credible,
with harsh criticism of current theories. But the reviews were very different.
Mystery, which proposed creation as a logical possibility, was criticized
as scientifically naive. Or it was ignored. Skeptic, which
hoped a natural theory would be found, was praised as scientifically astute.
{ Lynn Margulis called it "imperative reading."
} It seems likely that metaphysical preferences exerted a strong influence
on reviewers' perceptions of scientific quality. Evidently, harsh criticism
is acceptable, but only when it is placed in a naturalistic context. It
is all right to admit that "we are far from finding the answer," but
to say "maybe there is no natural answer" is unacceptable.
Design
of Biocomplexity
Design theorists have raised a variety
of questions about the plausibility of neo-Darwinian evolution. For example,
in Darwin's Black Box: The Biochemical Challenge to Evolution (1996),
Michael Behe claims that some biochemical systems are irreducibly
complex and could not have been produced in the step-by-step process proposed
in current neo-Darwinian theories.
Consistent with the standards of modern
molecular biology, Behe is encouraging a detailed examination of evolution,
at a deeper level with higher standards. As expected, his challenges have
stimulated creative thinking and experimenting among individual scientists who
read his book or heard about his ideas in subsequent reviews, lectures, or internet
debates. His critical questions have served as a catalyst for action by
defenders of evolution who want to show he is wrong, and by proponents of design.
Critical Thinking in Closed Science
What has been the response from scientific
journals? Behe summarizes: "While some science
journal editors are individually tolerant and will entertain thoughts of publishing
challenges to current views, when a group (such as the editorial board) gets
together, orthodoxy prevails." { From Correspondence
with Science Journals: Response to critics concerning peer-review by
Michael Behe. }
For example, one editor described a problem,
"I am painfully aware of the close-mindedness of
the scientific community to non-orthodoxy, and I think it is counterproductive."
Behe's submission was sent to a senior journal advisor, who responded to Behe's
critical analysis with a generous proposal for delayed publication: "Having
not yet understood all of biology is not a failure after just 200 years, given
the amount of understanding already achieved. Let us speak about it again
in 1000 years." The editor, in rejecting Behe's paper, said
"I would like to encourage you to seek new evidence
for your views, but of course, that evidence would likely fall outside of the
scientific paradigm, or would basically be denials of conventional explanations.
You are in for some tough sledding."
With another journal, after Behe submitted
a tightly focused paper (a reply to specific criticisms) the editor made an
excellent proposal for an expanded project that -- consistent with the noble
ideals of science -- would have performed a valuable service by encouraging
the open discussion of an exciting new idea: "The
notion of intelligent design is one that may warrant further exploration, even
though the topic has been dealt with extensively by both practicing scientists
and philosophers of science. Should this exploration take the form of
contrasting viewpoints in articles by two persons, published in the same issue,
on the more general aspects of the topic, then our editorial policy of presenting
current issues of significance in the biological sciences might be satisfied.
/ Recast in more general terms, your article could present the "pro"
side of the issue, and in that context it could address some of the criticisms
that have appeared since your book was published, but it would have to provide
a much broader perspective. In particular, it would have to assume a readership
that is not familiar with your book, at least not in any detailed way.
An accompanying article could present the "con" side of the issue,
again taking a general perspective. No doubt your book would figure prominently
in both articles, but the theme would be modern concepts of intelligent design
rather than a specific publication. This approach would almost certainly
reach a broader readership than a detailed response to specific criticisms.
It also has the added advantage of allowing you to present a synopsis of your
entire case rather than just defending specific aspects of it. Such a
paired set of articles would imply that the topic is important, and therefore
would attract additional readers."
This is an excellent "open science"
approach. But the journal's editorial board was less enthusiastic.
They protested that "it is not possible to develop
a meaningful discussion" between a design theory "based
on intuitive, philosophical, or religious grounds" and an evolutionary
theory "based on scientific fact and inference."
And they concluded, "Our journal... believes that
evolutionary explanations of all structures and phenomena of life are possible
and inevitable. Hence a position such as yours, which opposes this view
on other than scientific grounds, cannot be appropriate for our pages.
Although the editors feel that there has already been extensive response to
your position from the academic community, we nevertheless encourage further
informed discussion in appropriate forums. Our journal cannot provide
that forum, but we trust that other opportunities may become available to you."
{ all quotes are from Behe's Correspondence...
}
Comparing the Actual and Ideal
The editors informally recognize that "there
has already been extensive response to your position from the academic community,"
but official recognition (by publication in their journal) is denied.
Why? They explain that, in contrast with Behe's intuitive religious philosophy,
their journal contains pure science. But the situation seems reversed.
Although Behe's ideas are based on observations and scientific logic, publishing
them "cannot be appropriate" because
"our journal... believes that evolutionary explanations...
are possible and inevitable." The rejection seems to be based
on philosophical preferences, not scientific merit.
But according to a noble ideal of objective
science -- operating in a community of curious, open-minded scientists who are
exploring freely, are thinking critically, creatively, and flexibly, and are
dedicated to finding the truth -- the response should be different. Ideally,
instead of ignoring the concept of design, pretending it doesn't exist and trying
to exclude it from the mainstream of science, its tough questions would be carefully
examined and used as a stimulus for critical analysis, creative thinking, and
productive action.
Is design scientific?
Section 7C asks, "Can a design
theory be scientific?", and concludes that "The more closely we examine
arguments for enforcing a rigid methodological naturalism in science, the better
'design as science' looks." Section 7C began by introducing some
reasons for saying YES to an Open Science, and then explained why the proposed
reasons for saying NO do not seem logically justified. Instead of re-summarizing
the counter-arguments to NO, I'll just provide a link to the
summary in 7C. But it will be useful to look more closely at some
reasons for saying YES.
What are some benefits of an Open Science
that is liberated from the restrictions imposed by MN? Theories of design
can be useful in two main ways: by improving our search for truth (especially
in our evaluations of non-design theories), and by stimulating productive scientific
action to improve theories of non-design and design.
ENCOURAGING
ACCURATE EVALUATION OF THEORIES
Intrinsic Status
and Relative Status
When we think about an important question
-- Has the history of nature included both natural and non-natural causes? --
a Closed Science might lead to unavoidable error due to a serious logical flaw:
MN demands that scientists should ignore some possibilities, even
though logic demands that scientists should consider all possibilities.
In an attempt to understand this rejection of logic, it is useful to think about
two types of theory status: intrinsic and relative. A theory's intrinsic
status is an estimate of its plausibility. But if science is a
search for the best theory, there is competition, so each theory also has a
relative status that is defined by asking, "What
is the overall appeal of this theory compared with alternative theories?"
MN-science is closed. It restricts
our search for truth to one type of theory -- the group of naturalistic theories
-- and declares that the best theory within this group is "the scientific
conclusion." The focus is on relative status, and comparisons are
only with other naturalistic theories, since design theories have been excluded.
But we should also look at intrinsic status.
And if every theory in the naturalistic group has earned a low intrinsic status,
we should be willing to consider the possibility that the correct theory may
not come from inside this restricted group. Maybe all theories in the
group share the same flawed component, such as an assumed certainty that undirected
natural process can produce the high degree of complexity and specificity required
for an origin of life.
Of course, we should ask, "Are theories
of design worthy of being included in the competition?" To illustrate
this question with a sports analogy, we would not challenge the right of Major
League Baseball to declare its winner "the world champion" because
the winner of Little League Baseball was excluded from the competition, but
if within MLB the National League tried to exclude the American League, the
resulting "champion" would deserve less respect, and a claim of "world
champion" should be challenged. If design is excluded when we're
estimating relative status and determining "the scientific theory of origins,"
is a worthy competitor being eliminated? If we want a scientifically credible
answer to this question, it seems rational to base our answer on scientific
evidence, not the restrictive methodology of Closed Science.
Criticism, Competition,
and Confidence
A theory of design can serve a valuable
scientific function when it stimulates critical thinking, when it questions
the methodological sufficiency of considering only relative status (with design
theories excluded from the comparisons) and calls attention to the importance
of also considering the intrinsic status of naturalistic non-design theories.
Even if a theory is "best in the group
of naturalistic theories" and therefore has high relative status according
to MN-science, it can have low intrinsic status if it has a low plausibility.
In this case we should not be impressed with the title of "best theory"
since this just means it is the least flawed in a group of seriously flawed
theories. { For example, when we evaluate all current theories for a "chemical
evolution" origin of life, a scientifically justifiable conclusion is that
the strongest of these weak theories deserves to be assigned a low intrinsic
status. } By contrast, if science was more open, if it was willing to
evaluate theories proposing both non-design and design -- and if all evaluations
were based on a process of logic, not an assumption of naturalism -- we could
place more confidence in a conclusion of non-design. An open competition
would produce a more impressive winner.
In a closed science, restricted by MN,
some naturalistic theory will inevitably be the conclusion, whether or not it
has earned a high intrinsic status, since there is no acceptable alternative.
This lack of options can lead scientists to over-estimate the status of naturalistic
theories. By providing another option, a design theory encourages a more
objective evaluation of non-design theories, and this can improve our search
for increasingly accurate theories about nature.
Design can promote critical thinking about
current theories. And design can provide balance when we're thinking about
future theories, to insure that our imaginative extrapolations
into the future of science are not just creative, but are also appropriately
critical.
STIMULATING
PRODUCTIVE ACTION TO IMPROVE THEORIES
Theories of design can be scientifically
useful by encouraging a more accurate evaluation of non-design
theories, as described above, and by stimulating
ideas and action that improve theories of non-design and design, as described
below.
Criticism can inspire
Creativity
Throughout the history of science,
proponents and opponents of controversial scientific theories have proposed
arguments and counter-arguments. For example, in the mid-1800s the merits
of germ theory and spontaneous generation were vigorously debated by Louis Pasteur
and other scientists. And in the late-1920s, eminent scientists (especially
Niels Bohr and Albert Einstein) held energetic yet respectful discussions about
the assumptions, interpretations, and implications of quantum mechanics.
Interactive disagreements among scientists
can stimulate productive thinking and research, especially when discussions
occur in an atmosphere of open minds, precise communication, and respectful
attitudes. The challenging questions posed by a theory's critics can inspire
creativity by its defenders, leading to clever counter-arguments that defend
the theory, new experiments that support the theory, or modifications that improve
the theory.
Perseverance and
Flexibility
Perhaps the search by Closed Science
is occasionally futile, like trying to explain how the faces on Mt. Rushmore
were produced by undirected natural process (erosion,...) even though, when
scientists are restricted in this way, the finest creativity and logic will
fail to find the true origin. Perhaps MN is putting scientists in the
position of a man who is diligently searching for missing keys in the kitchen
when the keys are sitting on a table on the front porch. No matter how
hard he searches the kitchen, he won't find the keys because they aren't there!
On the other hand, if the keys really are in the kitchen, they will probably
be found by someone who believes "the keys are in the kitchen" and
is diligently searching there, not by a skeptic.
In Section 7C, I ask a question: "Can
the pursuit of knowledge be hindered by a claim for design?" Then
I answer "no" because "many scientists
will persevere" but this depends on a variety of factors, inside
and outside science, including the psychology of perseverance. In the
complex blend that generates productive thinking, "There
can be a tension between contrasting virtues, such as persevering by tenacious
hard work, or flexibly deciding to stop wasting time on an approach that isn't
working and probably never will. A problem solver may need to dig deeper,
so perseverance is needed; but sometimes the key to a solution is to dig
in a new location, and flexibility (not perseverance) will pay off."
{from A Detailed Examination
of Scientific Method}
Two
Stages of Design Research
A basic "design only" theory
is like the first stage of an investigation by forensic scientists. The
initial goal of a forensic detective might be to determine whether a death was
caused by undirected natural process or by design. If the data indicates
design, as in a suicide or murder, further research can investigate questions
involving details of the design and the design-directed action, such as what,
where, when, how, why, and who. Of course, there are connections and overlaps
between stages, since ideas and information generated in the first stage will
be useful in the second stage, and speculative theories about "second stage
questions" are being formulated during the first stage.
During their design-oriented extended research,
scientists might:
learn more about the "what" of
a feature's characteristics and history;
think about mechanistic possibilities for
the "when, where, how, or who" of design-directed action, or for combinations
of designed action and non-designed natural process;
search for ways to improve the methodology
of design, to develop better methods (with increased sensitivity and accuracy)
of logically strengthening or weakening a claim for design;
think about what our observations can reveal
about the "why" of a designer's intentions (for functionality and
purpose, optimality and aesthetics,...) by searching for answers to questions
like "What function(s) was the feature intended to accomplish?" or
"In what ways was the feature designed to be optimal, or to appear optimal?"
or "Was the object's designedness intended to be easily detectable, or
detectable with effort and ingenuity, or not detectable?";
determine the characteristics of the intelligence
(and actions) that could design (and produce) a feature;
develop heuristic strategies for finding
potentially fruitful areas of experimental or theoretical research.
In addition, we can ask interesting questions
about how we should interpret "animal instincts" when -- for the purpose
of trying to define what is and isn't "intelligent
design" or "undirected natural process"
-- we're thinking about the levels of intelligence and undirectedness
involved in various situations in nature.
These extensions are possible, but are
not necessary. A basic design theory claims to answer only the question
of whether design was involved in producing a particular feature.
If design-oriented research is also useful in generating knowledge about the
details of design (how,...) this is an extra bonus. But these extensions
are not an intrinsic part of a design theory, and are not necessary for the
scientific utility of design.
Is design a science
stopper?
When we're thinking about the scientific
usefulness of design, we can ask two questions: Would design make a positive
contribution? Would design make a negative contribution?
Some beneficial effects of design, in guiding
a search for truth and stimulating scientific action, are discussed above.
Some potentially harmful effects that, although possible, should not be a cause
for concern, are discussed in the two paragraphs below.
Design is not a science stopper.
This is not the intention, and it would not be the result. Proponents
of design want research for competitive non-design theories to continue, since
the main goal is to search for truth. Also, an increase in our knowledge
about non-design can result in either an increase or decrease
in the status of non-design. Yes, improved knowledge about non-design
can support design, since the strongest defense for non-design is often a "plea
for patience" because "we're just beginning to explore this area in
an effort to construct non-design explanations." For this reason,
and because finding truth is the main goal, design theorists support the continuation
of research in areas where design theories are being proposed. But they
want the freedom to also do research and to think in ways that may challenge
the naturalistic assumptions of MN.
Logically, theories of design and non-design
are mutually exclusive. But the scientific studies
inspired by design and non-design are not mutually exclusive. We can explore
both design and non-design, so there is no need for an either-or choice.
Advocates of an open science don't want to eliminate MN research, they want
to supplement it. They use the logical methods of conventional science,
and think MN is a good starting point, but they question whether MN should always
determine the ending point. Instead, they think scientists should be able
to follow the data wherever it leads. They want a metaphysical tolerance
that allows mental and methodological flexibility, with the freedom to shift
between MN and non-MN modes of thinking, to consider a wider range of possibilities
that include both non-design and design.
ALLOWING
FREEDOM OF THOUGHT IN SCIENCE
Two
Models of Science
In an open-minded free science, Mike
Behe's perceptive thought-provoking ideas about irreducible complexity would
be enthusiastically welcomed as a productive contribution, an opportunity to
increase the range of conceptual diversity, an invitation to move "beyond
the black box" in order to gain a more complete and detailed understanding
of evolution at the molecular level. In a curious, flexible, tolerant
community, the scientific journals -- fulfilling their potential as a haven
of free thinking -- would be eager to host invigorating debates about exciting
new ideas, to stimulate and facilitate interactions between critics of a theory
and its loyal defenders. Instead, these questions are rejected because
an editorial board "believes that evolutionary explanations...
are inevitable."
This "closed science" response
is consistent with a picture of a scientific community defending the reigning
paradigm at all costs, in any way possible. But is this the way science
should be? Do scientists want to behave in the ways portrayed in cynical
models of "science driven by culture" that have been constructed (based
on a significant amount of historical data) by those who study science?
Or do scientists want to behave in a way that is more worthy of their own lofty
ideals, that is consistent with their own model of science as an intellectually
free, objective pursuit of truth?
Scientific
Freedom
Scientists cherish their freedom of
thought. They don't want to be restricted by "rules" for doing
science. They do want the freedom to pursue explanations in any way they
think will be effective.
Consider, as an illustration, the methodological
philosophy of positivism, and how scientists in the 1700s
responded to these proposed restrictions. A central principle of positivism
is the assertion that an authentically scientific theory should not propose
the existence of entities, actions or interactions which cannot be directly
observed. For example, behaviorist psychology avoids the concept of "thinking"
because it cannot be observed. A positivist would approve. And in
the early 1900s, Ernst Mach urged the abandoning of atomic theory because it
proposes the existence of "electrons" and other unobservable entities.
What has been the modern response?
Although behaviorism was dominant in American psychology for several decades,
since the 1950s its influence has been surpassed by a less restrictive cognitive
psychology (whose focal point is the process of thinking) that provides a liberating
perspective for scientists. And atomic theory is alive and thriving.
Most modern scientists believe that thoughts and electrons exist, even though
they cannot be observed, because effects that can be observed are most satisfactorily
explained by proposing the existence of thoughts and electrons. { In the
same way, scientific logic could lead us to infer that an observed effect was
produced by the action of an unobserved designer. } Many modern scientific
theories include unobservable entities (photons, electrons,...) and interactions
(electrical fields and forces,...) among their essential components. Faced
with a choice of "behaving as they should" (according to positivists)
or being effective, scientists have chosen effectiveness and freedom.
When this "freedom of thought"
principle is applied to open science and design, an important question arises:
If scientists prefer freedom, why is MN -- which restricts freedom -- a commonly
used methodology? There is a simple explanation: Most scientists
work in areas that are not affected by MN restrictions; in the few areas
that are affected, those favoring the status quo hold positions of power, and
they have a vested interest in maintaining MN so they can use it to censor their
critics in an effort to protect their paradigm and its core theories.
Should
we ask the question?
In an open-minded search for truth,
Michael Behe's critical questions about irreducible complexity would be included
in the mainstream of science. Instead, design questions are dismissed
by saying, "Let us speak about it again in 1000 years."
This rejection is based on a claim that design has
not proved a natural cause of irreducible complexity is impossible. Behe
agrees, but says "So what?":
"I acknowledge
that I cannot rule out the possibility future work might explain irreducibly
complex biochemical systems without the need to invoke intelligent design. ...
But the inability to guarantee the future course of science is common to everyone,
not just those who are supportive of intelligent design. ... I strongly
disagree with the contention that, because we can't guarantee the success of
intelligent design theory, it can be dismissed, or should not be pursued.
If science operated in such a manner, no theory would ever be investigated,
because no theory is guaranteed success forever. Indeed, if one ignores
a hypothesis because it may one day be demonstrated to be incorrect, then one
paradoxically takes unfalsifiability to be a necessary trait of a scientific
theory. Although philosophers of science have debated whether falsifiability
is a requirement of a scientific theory, no one to my knowledge has argued that
unfalsifiability is a necessary mark. Because no one can see the future,
science has to navigate by the data it has in hand. Currently there is
only one phenomenon that has demonstrated the ability to produce irreducible
complexity, and that is the action of an intelligent agent. It seems to
me that that alone justifies pursuing a hypothesis of intelligent design in
biochemistry." { Behe, Philosophical
Objections to Intelligent Design: Response to Critics}
Yes, when we study a particular feature,
it may be difficult to objectively and confidently answer the question, "Was
design involved in producing this feature?" But it should be
easy to decide, "Should we ask the question?" A curious,
thoughtful, open-minded scientist will say YES. Why? Because, when
all arguments and counter-arguments are studied carefully, away from the pressures
of group conformity (when there is an opportunity to think deeply about what
is wise), the calm logic of rationality clearly indicates that free inquiry
is the best approach, that it would be foolish, in the long run, to let our
search for truth be restricted by inflexible advocates of Closed Science who
insist that we must say "No, we should not even ask the question."
When we're deciding if science should be open or closed, and if design is a
concept that seems worthy of serious consideration and further development,
there are many reasons to say "Yes, of course we should ask the question."
And, regarding the acknowledged difficulties
that we face when deciding, "Was design involved...?", we can phrase
the question in different ways, thereby defining different criteria and standards
for theory evaluation. Section 7C explains why
it is futile to ask, "Can design be proved with absolute certainty?"
Instead, scientists should ask, "Can we develop a rationally justified
confidence in the plausibility of this particular theory of design?", or
"When we compare it with other current theories, is design the best explanation?",
or "Is it one of several reasonably plausible explanations?", or "If
we continue to develop this theory, does it have the potential to become a reasonably
plausible explanation in the future, or to stimulate interesting ideas and action
during its development?"
CONCLUSIONS
Should science be open?
Is a rigid enforcing of methodological
naturalism always wise? Should science be closed by MN, or open to design?
This section has examined some reasons for thinking that theories of design
are worthy of serious consideration and further development, and should be included
in science. Here is a brief review:
If one goal of science is to search for
truth about nature, a theory of design can be useful because it might be true,
and because it can improve our evaluations of current non-design theories and
our speculations about future theories. When critical thinking about non-design
is allowed and encouraged, defenders of non-design can be inspired to modify
and improve their theories. An open science would promote interactive
discussions, and would stimulate productive action (theoretical and experimental)
by proponents of design and non-design. And a non-dogmatic attitude of
metaphysical tolerance, willing to ask questions about design with an open mind,
would be consistent with a noble vision of science as an objective pursuit of
truth, and with the preference of scientists for minimal restrictions on their
intellectual freedom.
When all things are considered, it seems
easy to say YES when we ask the central question for defining scientific utility:
Can a theory of design help improve our understanding of nature?
A
Process of Change
During the process of considering any
reform, we're asking two questions: "Should we change?" and "How
can we change?" Sections 7B-7D are devoted to the first question,
deciding whether we should change.
But even if, as I'm recommending, we decided
that an open science would be beneficial, it would not be easy to change the
habits of scientists. It would take more than a verbal declaration that
"MN will no longer be strictly enforced, so a scientific theory can now
question the sufficiency of natural causes." Even if there was a
way to "officially" include design in science, many scientists would
still be unable to impartially evaluate a theory of design whose claims differ
from their usual way of thinking. Why? One set of reasons is intellectual,
another is practical.
Intellectual Reasons
In the current academic community, in science
and other areas, many scholars, including both nontheists and theists, think
MN is the best way to do science. But the depth of their commitment varies
widely, ranging from vigorous opposition to a passive acceptance of the status
quo. And throughout this range, opinions are often based on a shallow
understanding of the issues.
In this setting, improved education can
promote change because for most people, the more they learn about open science,
the better it looks. Therefore, a major goal of reformers is helping people
learn more about design, encouraging them to think deeply about the different
perspectives, to delay their decisions until they have carefully considered
all of the main arguments and responses.
The first step in improved awareness is
simply recognizing the existence of options. Instead of assuming, without
much thought, that natural science requires naturalism,
we can ask "Is MN always wise?" because MN is a choice. We are
not forced to declare that the best naturalistic theory is "the scientifically
supported conclusion about truth" even if this theory is not well supported
by scientific evidence and logic.
Another choice is
how to frame the issue, how to define the factors that should be considered
(and weighed most heavily) when we're evaluating the utility and wisdom of MN.
One approach is to emphasize the implications
of miraculous action in design. For purposes of persuasion, this is more
effective when combined with exaggerated imaginary scenarios -- like scientists
explaining the results of their lab experiments by appealing to miraculous intervention,
and stopping research by claiming "God did it so we don't need to study
it" -- even though design would have little overall impact on the practice
or productivity of science. A focus on miracles can arouse feelings that
those who propose design are cheating, that they are not "playing fair"
and are not obeying the rules of science. And an argument
that "MN keeps miracles and metaphysics out of science" seems to be
supported, if we choose to ignore the possibility that metaphysical perspectives
are being smuggled into science along with the methodological constraints of
MN.
An alternative approach, which makes design
appear more favorable, is to emphasize the value of intellectual freedom.
Should we enforce MN to produce a Closed Science in which some ideas are censored,
or allow free thinking in a tolerant Open Science? Will our search for
truth about nature be enhanced by demanding that some ideas must be ignored?
An intermediate approach might focus on
logical methodology. When this is done thoroughly
and objectively, it highlights some weaknesses of design, and also areas where
it is surprisingly strong.
Which perspective is best? Should
we frame a debate in terms of miracles and metaphysics, freedom and tolerance,
or logical methods? In my opinion, it is best to consider all relevant
arguments from a wide range of perspectives, instead of distorting a complex
reality by oversimplifying it, by focusing too narrowly on any particular aspect
of the overall picture.
Practical Reasons
An important factor opposing change is
the fact that in general, in most life situations, the status quo has a powerful
stability due to inertia. A variety of factors -- operating at the levels
of individuals, groups, and institutions -- work to resist change. An
academic community can exert strong pressures that encourage conformity with
the intellectual preferences of the majority. Especially in areas that
are most directly affected, such as biology and education, actions have consequences.
A scholar who is weighing the advantages and disadvantages of publically supporting
open science may see no personal benefits arising from this act of nonconformity,
but can imagine that it might have negative effects on professional rewards
such as publications and prestige, funding and influence, positions and power.
Most scholars care about these things, but would not be directly affected by
an inclusion of design and a liberation from MN. Most individuals, therefore,
can imagine practical personal reasons to conform, but have little practical
motivation to actively support a change.
When we recognize the effects of cultural
influence, this could lead to pessimism in those who, like myself, want science
to be dominated by logic rather than power. But I continue to have faith
that, in the long run, the cumulative effects of improved education will be
productive. It seems that the most likely mechanism for change will be
the "bottom up" influence that individual opinions can exert on group
dynamics and institutional structures. But I could be wrong, and positive
responses by leaders in the scientific and educational communities may have
a favorable impact.
In Sections 7A-7D, I explain why it seems
rational to conclude that -- by contrast with a closed science, restricted by
methodological naturalism -- an open science, free to consider the possibility
of design, might be scientifically useful in a search for truth about nature.
But I also recognize the rationality of arguments for retaining MN in science,
and can respect the intellectual integrity of people holding this view.
Section 7E examines the question, "If we decide to adopt MN, what should
we do in order to improve the logical precision and metaphysical neutrality
of our thoughts and actions in science and education?"
7E. Logically
Appropriate Humility
( the title has been changed to "
The Problems of Closed Science" )
{{ a
note to the reader: In this page -- but not in the Short Overview and
Main Overview, which during the condensation have been carefully reorganized
and rewritten -- Sections 7E, 7F, and 7G are currently unfinished: 7E is a
rough draft, and 7F-7G are incomplete. I'm leaving these sections "unfinished"
for awhile because I want to make the main ideas available for you, but I also
want to invest more time in developing other aspects of the ASA website for Education
in Science & Faith. Therefore, some transitions
don't flow smoothly, and some ideas are duplicated (in 7E) or undeveloped
(in
7F & 7G). Later, I'll return to these sections and will "smooth
over" the rough spots, improve the style, shorten 7E, and lengthen 7F-7G.
But despite the rough edges, it should be easy to understand the main ideas,
and I think you'll find them interesting and thought-stimulating. }}
The
Limits of Science
A strategy of methodological
naturalism (MN) requires that scientific
theories should postulate only natural causes. If we decide to
accept the restrictions imposed by MN, a second limit is logically necessary:
If an event really does involve a non-natural cause, any
explanation of the event by MN-Science (in terms of only natural causes) will
be incomplete or incorrect. This limit, a logically appropriate
humility concerning the potential for inescapable error in MN-Science, is MN-Humility.
Each limit answers a question:
For MN the question is, "What are
the limits for what can claim to be science?", and the answer is a proposal
that is submitted for our evaluation and decision. Section
7D explains why, if we want an Open Science that can more effectively search
for truth, we should decide to reject MN and the restrictive Closed Science
it produces.
For MN-Humility the question is, "What
are the limits for what MN-Science can claim to explain?" Although
the answer is a logically valid conclusion, it is rarely acknowledged in discussions
of origins, in science or education. Why? This section examines
some intellectual habits that encourage scientists and educators to ignore the
logic of humility.
A Change of Mind
A change from Two Options to One Proposal:
In 1998, I was willing to support either of two options: accepting
MN (and acknowledging MN-Humility) or rejecting MN. Two years
later, when I began revising this overview, I had become convinced that it was
more rational to reject MN. The main reason for my change of mind is that,
as explained in Sections 7B-7D, I've become more thoroughly convinced that an
open science can be a better science. But another important reason, which
is examined in this section, is that an acknowledgment of MN-humility is rarely
attempted; and even when there is an honest effort, it seems impossible
to be truly and effectively humble.
Before turning to MN-Humility, here are
some brief reminders about why an open science, in which design theories are
considered worthy of serious consideration and further development, has the
potential to be a better science:
The Benefits of Open
Science
The difference in responding to a question
-- Was the history of nature all-natural? -- is the difference between
science that is open and closed.
In an open science
(not restricted by MN) this question is a topic for investigation, to be evaluated
based on scientific evidence.
In a closed science
(restricted by MN) the inevitable conclusion, no matter what is being studied,
is that "it happened by natural process." Therefore, a scientist
can know -- without doing any science -- that science will declare a naturalistic
theory to be "the scientific explanation."
An open science says "Yes, we can
ask the all-natural question, and then try to answer it by scientific research."
A closed science says "No, we shouldn't even ask the question, since the
issue has been decided by MN." In a science closed by MN, although
it seems very strange, a scientist must bypass the process of science in order
to reach a scientific conclusion about the "all natural" question.
Due to circular reasoning, with MN the assumption becomes the conclusion: naturalism
in, naturalism out, with no need for science.
An open science always begins by assuming
MN, but this MN is flexible (in contrast with a rigid MN) and is open to reaching
a non-MN conclusion if this seems justified by the evidence. An open science
evaluates each theory based on its own merit, whether it criticizes or defends
naturalism, and allows free inquiry with individual and communal freedom of
thought, with scientists free to follow the data wherever it leads.
In a search for truth about nature, in
either of two possible worlds (with an all-natural history, or with some non-natural
process) an open science will allow, but cannot guarantee, reaching correct
conclusions. But in one of these two worlds, a science that adopts MN
must inevitably reach some wrong conclusions. If we're not certain about
which type of world we live in, the logical conclusion is that a rigid MN might
lead to unavoidable error. Therefore, when we ask, "Is a rigid MN
always an effective scientific strategy for seeking the truth?", the answer
is NO, so it seems rational to reject a rigid MN.
{ For an in-depth examination of arguments
for and against MN, check Sections 7A-7D. }
Science
as an Expert Witness
In 1998, here is how I summarized the
limits on what MN-science should be allowed to claim: We
can view a restricted MN-science as one aspect of a broader "search for
truth" that considers all possibilities without imposing metaphysically
biased restrictions on theorizing. In this open search for truth, what
is the role of MN-science? It can be a valuable resource that should be
respected as an expert witness, but it should not be the judge and jury when
we're defining reality and rationality. (Rusbult, 1998)
This metaphor has two aspects:
First, we want science to be an "expert
witness" that will help us in our search for accurate theories about nature.
The comments above explain why -- if we want to avoid a "hostile witness"
that might be forced to give false testimony -- we should want the conclusions
of science to be based on the process of science (on a logical analysis of observations),
not dictated by the assumptions of MN. For science to be a better witness,
we need better science.
Second, if we want science to be just a
witness, not the judge and jury, it should not be the only factor that we seriously
consider when we're deciding what is real and rational. Whether science
is open or closed, many people in modern society will tend to assume, due to
the cultural authority of science, that science is "the final word"
when we're debating various views of nature. It can be very difficult,
perhaps even impossible, to effectively neutralize this assumption, as discussed
in the remainder of this section.
The
Necessity of Humility
Most of Section 7E examines a question:
What should we do when, instead of receiving a warm welcome, open science (with
its invitation to free thinking) is resented and rejected?
When someone adopts MN, they should also
adopt MN-Humility. But is this enough? Does
it make MN satisfactory? Basically, the combination of "MN plus MN-Humility"
is a decision to first use an approach with logical limitations, and then apologize
for the logical deficiencies of this approach. I think it seems more rational
to fix the logical deficiency by rejecting MN, as discussed above. But
if others think MN should be accepted, they should acknowledge its logical weakness
-- that MN bypasses the process of science, and may lead to unavoidable error
-- by explicitly acknowledging MN-Humility. In principle, "MN plus
MN-Humility" could be an adequate combination, but in practice the result
is rarely satisfactory, as described in the three subsections below.
The Rarity of Humility
(Part 1)
In the scientific and educational communities,
and in the public media, there is a consistent disregard for MN-Humility.
Instead of explaining the logical limitations of MN-Science, there is a strong
implication that "the conclusions of Modern Science" are true, that
since a non-MN theory has been labeled nonscientific (or unscientific, pseudoscientific,...)
it cannot be plausible and does not deserve serious consideration. Overall,
it is an interesting situation: MN is used to bypass the process of
science, and then the authority of science is claimed as support for the
unavoidable conclusion required by MN -- that according to science, the history
of nature was all natural -- whether or not this conclusion seems to be supported
by science, by a logical analysis of observations and a logical evaluation of
all competitive explanations. Ironically, the authority of science
is used to prevent the process of science.
The Rarity of Humility
(Part 2)
One reason to reject MN is its arrogance.
The introduction to this section explains the logic of MN-Humility: We
should explicitly acknowledge that if an event actually involved a non-natural
cause, then any explanation in terms of only natural causes will be incomplete
or incorrect. Section 7E describes the reality of MN-Arrogance:
Instead of humbly explaining the logical limits of MN-Science, there is a strong
implication that "The Grand Conclusion of MN-Science" is true, that
a non-scientific theory does not deserve serious consideration in a rational
modern society.
Of course, The Grand Conclusion -- that
no matter what is being studied, "it happened by natural process"
-- is actually the preliminary assumption of MN, not a conclusion reached by
the process of science. But even though there has been no science, the
authority of science is claimed as support for The Grand Assumption of an all-natural
history of nature.
Reaching a scientific conclusion without
doing science is fast and efficient, but is it rational? Should we adopt
MN and then try to explain why MN-science may lead to unavoidable false conclusions?
This was one of two options I recommended in 1998 when I said, "MN-science...
can be a valuable resource that should be respected as an expert witness."
But MN demands that when we ask "Was history all-natural?", we must
reach a conclusion before doing any science, so MN-science isn't an expert witness
for this question. In fact, the rigidity of MN might lead to unavoidable
falsity when we're searching for truth, so MN-science is a potentially hostile
witness. The second option, which seems more rational, is to reject MN
and let scientists think freely with an open mind, so they can reach scientific
conclusions based on scientific evidence and logic.
The
Futility of Humility
To see why MN-Humility is usually ineffective
in being truly humble, think about what will happen when a naturalistic "scientific"
non-design theory and an "unscientific" design theory both claim to
describe the same event, such as the origin of life. In this situation,
the cultural authority of science will almost always guarantee that the unscientific
theory is not respected and is not evaluated fairly. Instead, the scientific
theory (that life was produced naturally from non-life) is assumed to be more
plausible and more worthy of consideration, whether or not the scientific evidence
supports it. And in a science classroom where "only science is taught"
only the naturalistic theory will be taught.
Thus, even if MN-Humility is acknowledged
(which is rare), its effectiveness will be greatly diminished because -- due
to the powerful cultural influence of science -- there is a strong implication
that "not scientific" means "not true." This result
seems very strange when we consider the fact that MN provides a way to bypass
the process of science, yet still claim the authority of science,
for all conclusions about origins. Instead of allowing this to continue,
doesn't it seem more rational, as explained in Sections 7B-7D, to reject MN
and let scientific logic determine scientific conclusions? Timing is
important. Instead of reaching a conclusion first, and then explaining
(with MN-Humility) why it might be wrong (but probably isn't wrong, since we
should trust science rather than nonscience) it seems better to depend on scientific
thinking (a logical analysis of observations), not methodological naturalism,
when we're reaching scientific conclusions.
Science
and Truth? (a shift from NO to YES)
If a rejection of MN-Humility is not
logical, why is it so common? One reason is that, since MN is very useful
for protecting a naturalistic paradigm in science, all arguments for adopting
MN are embraced, even if this requires a toleration of logical inconsistency.
One strategy for making MN look good is
to attack arguments that make MN look bad. For example, if we accept a
claim that Open Science would be useful when we're searching for truth about
nature, this provides a reason to reject MN. Some scholars challenge the
foundation of this claim by arguing that "a search for truth" should
not be one of the goals of science. {details}
In the arena of rhetoric, this anti-realist view can be useful in a two-step
shift (from NO to YES) which has the effect of convincing people that they should
accept MN even though they will be rejecting MN-Humility.
When we ask, "Do scientists search
for truth?", how does a shift from NO to YES occur? First, a claim
that "truth is not a goal" is used to weaken arguments for Open Science.
Second, there is a strong implication (or even an explicit declaration) that
a scientific theory about nature -- not a nonscientific theory about nature
-- is most likely to be true, and MN-Humility is rejected. This second
step is usually easy and effective because most people, both scientists and
nonscientists, think that searching for truth is one goal of science, that scientists
are trying to accurately describe what is really happening in nature.
{ Whether scientists search for truth is one question, whether they have actually
found truth is another. When we're thinking about the second question,
critical thinking is always appropriate, and humility is sometimes justified.
}
Typically, the two claims -- that truth
is not a goal of science, and science is a way to find truth -- are separated
in time, or they are made by different people, so the logical inconsistency
is hidden. Or perhaps only the first claim is made explicitly, because
even when the second claim is not explicit, even when nobody call attention
to it, it is assumed by almost everyone.
Two
Humilities (re: non-natural and natural)
The limits of conventional MN-science
should be explicitly recognized, so we don't claim to know more than we can
know. Humility is logically justified on two levels: 1) if MN is
adopted, we need MN-Humility (regarding
the possibility of miraculous-appearing events that we define as non-natural);
2) with or without MN, we need Interpretive Humility
(regarding our interpretations of normal-appearing natural events).
First, we should recognize that, even if
we adopt MN and therefore limit science to natural explanations, the claims
of science should be correspondingly limited by MN-Humility (by explicitly recognizing
that a natural explanation for most events is logically compatible with miraculous-appearing
supernatural action for occasional events). MN-science should explicitly
acknowledge the possibility of miracles (this could be done quickly and easily,
by simply describing the five logical possibilities) even
though MN-science does not allow miracles in explanations.
Second, we can explain that "natural"
does not mean "without God"; "natural" just means
"normal appearing," which neither affirms nor denies supernatural
action because empirical evidence cannot let us decisively distinguish between
different interpretations of natural events. { It is necessary to say
"decisively" because empirical evidence for a design
of the universe supports a claim that the natural properties of nature have
been cleverly designed. And there can be a claim, for a particular feature
or the entire universe, that a designer never would have
made it the way it is. In each case, empirical evidence is the basis
for a claim, but is the evidence logically decisive? }
Metaphysical
Materialism
According to a theory of metaphysical
materialism (Materialism), matter
is all that exists. More precisely, Materialism claims that matter/energy
(and its natural operation due to interactive forces,...) is all that exists.
This atheistic worldview denies the existence of God and all types of theistic
action.
Even though they are not the same, there
is a strong tendency for Methodological Naturalism to promote Metaphysical Materialism.
This can occur, in the mind of a person, in a 3-step process: 1a) MN-Humility
is rejected, and MN (a "methods" claim
that science should try to explain everything in terms of natural process)
becomes a "reality" claim that science
is able to explain everything because it all happened naturally;
1b) "everything" is defined to include everything (not just the pre-human
formative history of nature, but also human
history); and 2) Interpretive Humility is rejected, so "natural"
means "without theistic action."
In these three steps, methodological
naturalism becomes metaphysical naturalism
(with 1a and 1b) and then atheistic metaphysical materialism
(with 1a-1b plus 2). To avoid a worldview of Materialism, we must challenge
one or more of these steps. Steps 1b and 2 are challenged by a theistic
evolutionist who thinks that miracles have occurred during human history, and
that God designed natural process and is actively involved in it. A creationist
challenges all three steps.
{ note: Some people define "naturalism"
and "materialism" to mean the same thing, but I think it's important
to make a distinction, because Interpretive Humility is important. There
is a discussion of terms (methodological, metaphysical, naturalism, materialism,...)
in the Appendix [in the original page]. And different worldviews (theism,
deism, atheism,...) are discussed more fully in Section
7F.
}
Evolution and Atheism: Some people,
both atheists and theists, try to link evolution with atheism by implying that
"if evolution is true, God either does not exist or is not active in history."
This claim should be challenged. Yes, it is true that Total Evolution
(astronomical, chemical, and biological) is an essential foundation for an atheistic
belief in a universe without God, so "if atheism then evolution."
But a claim that "if evolution then atheism" is not logically justified,
as explained in Sections 2C and 2E of the Main Overview.
Can MN-Science be Metaphysically Neutral?
Although advocates of losed Science claim that "MN keeps miracles and metaphysics
out of science," we should see that MN imposes its own metaphysical structure
onto science, and from here the influence can diffuse into society. Is
there any practical way to minimize the practical effects of MN on our worldviews?
Can science explain
everything?
Even though MN-Humility is logically
appropriate, it tends to be consciously rejected or, more commonly, just ignored.
One reason for the rarity of MN-Humility is because it requires an open-minded
willingness to consider the possibility, for a particular event in the history
of nature, that maybe there is no scientific explanation, that a nonscientific
theory might be true. But scientists rarely want to admit that MN might
guarantee that the correct theory will be nonscientific, even though this admission
is logically warranted. Although our attempt to construct a total science
(that can explain everything in the history of nature) is a noble effort, we
should do this with humility by explicitly acknowledging that MN might make
it impossible.
Scientism:
An Exaggerated Trust in Science
According to Webster's New Collegiate
Dictionary (1977), scientism is "an
exaggerated trust in the efficacy of the methods of natural science to explain
social or psychological phenomena, to solve pressing human problems, or to provide
a comprehensive unified picture of the meaning of the cosmos."
Defining scientism as "exaggerated
trust" is a reminder that tendencies toward scientism form a continuum.
For example, even though I think scientism is not wise, I have a high respect
for science because scientists usually show good judgment in estimating the
plausibility of scientific theories, and science is usually effective in helping
us develop a better understanding of nature. This confidence in science
is a limited form of scientism, which seems justified.
But when there is too much confidence,
it produces an extreme scientism (which I'm calling
Scientism) with an unskeptical assumption that
science is always the most effective method for attaining reliable knowledge
about nature, that all answers offered by contemporary science are necessarily
our most plausible theories about "the way things are." According
to Scientism, science is our best method for seeking truth, so "if a theory
is not scientific, it probably is not
true."
Although the intellectual
imperialism of scientism is a cause for concern in many fields of knowledge,
this section will focus on a belief that science can "provide
a comprehensive unified picture of the meaning of the cosmos," that
science is the most effective method for constructing a rational metaphysical
worldview about "the way the world is," including what is and isn't
real.
According to MN-Scientism, theistic action
is not included in science (due to MN), so (due to Scientism) it is not real.
And if theistic action isn't real, our religious beliefs should be scientifically
explained by naturalistic theories of psychology and sociology which propose
that God is a product of the human imagination, and religion is a comforting
delusion. But if theology is based on illusion, it cannot help us understand
reality. For seeking non-illusory truth, we can depend only on science,
so Scientism is justified. { Do you see the circular reasoning? }
As a logical corrolary, a theory of functional
compartmentalization -- which has the effect of marginalizing religion and minimizing
its effects -- claims that science and religion can never be in conflict because
science describes physical reality (including the "spiritual" aspects
of humans and human experience), while religion (which is a product of human
thoughts, emotions, and group dynamics) is our attempt to construct a meaningful
philosophy of life, so religion should not attempt to describe any reality (except
for the ideas we are constructing inside our own minds).
If MN-science is given the responsibility
for explaining what is real, and there are no limits for what science can claim
to explain, then naturalistic science is able (at least in principle, if not
in practice) to explain everything. Due to mutually supportive relationships
that are based on circular reasoning -- which is faulty but is useful for laundering
the logic (for disguising the fact that "scientific conclusions" about
naturalistic metaphysics are just the deductive consequence of assumptions)
-- there are deep connections between MN-Scientism, a lack of MN-Humility, and
a worldview of Materialism.
MN-Humility is Not
Sufficient
At the end of Sections 7A-7D, I draw
a conclusion and acknowledge a practical reality: "It
seems rational to conclude that -- by contrast with a closed science, restricted
by methodological naturalism -- an open science, free to consider the possibility
of design, might be scientifically useful in a search for truth about nature.
But I also recognize the rationality of arguments for retaining MN in science,
and can respect the intellectual integrity of people holding this view.
Section 7E examines the question, "If we decide to adopt MN, what should
we do in order to improve the logical precision and metaphysical neutrality
of our thoughts and actions in science and education?"
In this overview, I'm making two proposals:
1) Ideally, we should adopt an Open Science. 2) Since in the near
future some people will reject Open Science, in situations where a Closed
Science (with MN) is assumed, there should also be an explicit acknowledgment
of MN-Humility.
Are both proposals equally satisfactory?
Everyone should recognize the logical sufficiency of the second proposal: MN
plus MN-Humility. Many people, including some theists, think this makes
it acceptable. But when we look carefully at real-life applications and
practical results, we see the futility of humility and
the advantages of rejecting MN. When we consider how it is actually used,
MN-Humility is almost always ineffective, because if design is labeled a "nonscientific
theory" it will not be able to compete fairly, on a level playing field,
with a "scientific theory" that is backed by the cultural authority
of science. When all things are considered, it seems much better to adopt
an Open Science in which all theories, whether they propose design or non-design,
are evaluated based on scientific evidence. The alternative is to bypass
the process of science and then proclaim that the conclusion of science is non-design.
In situations where MN has been adopted,
of course we should insist that, since MN-Humility is logically justified, it
should be explicitly acknowledged. But there are many reasons to realize
that "MN plus MN-Humility" is not a satisfactory solution, that Open
Science is a better option.
The two sections below, Hidden Arguments
and Open Discussions, describe some ways to minimize the negative impacts of
MN when (as is common) it has been adopted in science and education.
Hidden Arguments
Occasionally a Materialist conclusion
is stated explicitly, as when Carl Sagan (winner of awards for science education)
opened Cosmos with the nonscientific assertion, "The Cosmos is all
that is or ever was or ever will be." Or when the National Association
of Biology Teachers declared (in a policy statement retained for 2 1/2 years,
ending in 1997) that "natural" means "no theistic action"
by insisting that evolution is an "unsupervised"
process, thereby endorsing (even though it isn't scientifically justified) an
atheistic view of the history of nature.
Usually, however, a worldview of Metaphysical
Materialism is not explicitly stated. But it can be implicitly communicated,
whether or not this is intended. For example, an observation that "there
is no theistic action in scientific descriptions of the
universe" can imply a conclusion that "there is no theistic
action in the universe" unless a teacher or
textbook explains why this conclusion is not logically justified. But
there is rarely an explanation.
Unfortunately, implicit "hidden arguments"
can be very persuasive because only one viewpoint is presented, with no opportunity
for counter-argument. Since the arguments are hidden, the logic is not
examined and analyzed. And without awareness and critical analysis, fallacious
reasoning (such as circular logic and unwarranted extrapolations) can survive
and thrive.
Open Discussions
In contrast with hidden arguments
that hinder awareness and discourage critical thinking, open discussions
will encourage and facilitate an intellectually free search for truth.
Possible topics for discussion include
arguments for and against using MN to restrict science, the logical reasons
for adopting MN-Humility, the goals and methods of science, the limits of science
(so we can recognize and minimize claims for knowing more than we can know),
the distinction between science (which usually helps us develop a better understanding
of nature) and an extreme scientism which claims that
science should be used to explain all aspects of "the way the world is,"
including what is and isn't real (in the world) and rational (in our thinking),
and the scientific evidence for and against theories of design and non-design.
In an open discussion of any or all of
these ideas, a basic guiding principle is to have the major ideas (from the
major viewpoints) expressed openly in a strong-and-clear form (with no weak-and-distorted
"strawman" caricatures), in order to construct a level playing field
where ideas can be evaluated based on their intrinsic merit. The goal
is to minimize the bias that occurs when there are important omissions or distortions.
Unfortunately, opponents of design theories
recognize, as emphasized in Section 7C, that "the
more closely we examine arguments for enforcing a rigid methodological naturalism
in science, the better 'design as science' looks" because "when
we inspect more closely, the logic [in arguments for excluding design from science]
is less impressive." And if design theories are included in
science (and education), instead of just censoring design with MN, our evaluations
can be based on scientific evidence, and this will generally improve the perceived
plausibility of design theories.
Therefore, opponents of design usually
don't want to allow open discussions of the major issues (regarding the inclusion
of design in science and the plausibility of design theories) in science and
education. Instead, they want to continue the persuasive rhetoric of hidden
arguments and the forced exclusion of design theories. Some reasons for
using hidden arguments, and some strategies for avoiding open discussion, are
outlined below.
Teachers and Controversy
In the United States, teachers have
lots of freedom in the classroom. But they are also worried, with some
justification, about negative consequences -- due to the potential for undesirable
effects in their professional and personal lives, including threats of legal
action aimed at themselves and their school districts -- if they try to engage
in open discussions such as those described above. And it would be very
difficult to do an open discussion well, due to the wide range and inherent
complexity of the many issues involved, and the lack of useful resources in
current textbooks. Teachers are confused, wondering how they can cope
with the challenges (legal, political, logical, and pedagogical) of teaching
science effectively in a climate of intense controversy. Many skilled,
well-meaning teachers have decided that their wisest strategy is to avoid any
potentially controversial discussions of issues in the "hot" areas
of origins and science/religion relationships.
It's easy to understand why a teacher might
choose a strategy aimed at minimizing the potential for unpleasant controversy.
Teachers are in a tough situation, so we should be gentle in our judgments about
those who may appear to be using "hidden arguments" in the classroom.
Often this is unintentional, and the problem is not their intentions, but their
lack of information about better options, combined with a lack of support (if
they did want to implement these options) from educational organizations, administrators,
school boards, and local communities.
Asymmetry and Neutrality
There is inherent asymmetry between
expressions of theistic and nontheistic views. A viewpoint cannot be expressed
(and an event cannot be described) from a theistic perspective unless this is
done explicitly, but "not theism" can be communicated implicitly yet
strongly in a wide variety of ways. For example, if a curriculum always
assumes "there is no theistically active God" and omits the possibility
of theistic action from every description of every event, does this achieve
an appropriate neutrality? Does the absence of a theistic perspective
in education produce a balanced treatment of that perspective?
Due to this asymmetry in expression, trying
to ignore religious perspectives -- as proposed in a currently popular slogan
of "teaching only science" -- seems to produce an implicit hidden
curriculum that teaches more than just science. { It is easy for
non-religious perspectives to sneak in "under the radar" of constitutional
concerns, especially when there are personal reasons to prefer these views,
as described below. }
Advocating a Worldview
As explained above, a teacher's desire
to avoid controversy, when combined with the inherent asymmetry in expressions
of theistic and nontheistic views, can produce an unbalanced non-neutrality,
even when this is not intended.
But for some people, there are metaphysically
based (or politically based) reasons for intentionally promoting non-theistic
worldviews in the classroom, even in public schools where such advocacy (of
either religious or anti-religious views) is not supposed to occur. Although
it's difficult to accurately determine the extent of such advocacy, and the
motivations for it, I think advocacy is probably more common in groups (such
as educational organizations, especially among activist leaders) than in individuals,
and is more common in classrooms for older students, especially at the college
level.
Implicit Criticisms of Religion
A strongly implied criticism of religion
can occur in many ways: by providing historical examples of "warfare"
between science and religion; by describing foolish "God of the gaps"
theories from the past, while applauding "the triumph of science over superstition";
or by an overly simplistic analysis of complex science-religion relationships,
such as casually referring to "faith versus reason" as if these were
mutually exclusive and inherently antagonistic; or by implying that all
religious beliefs and experiences can be scientifically explained
in terms of naturalistic psychology and sociology. These techniques, and
others, can be used to indirectly criticize theories associated with religion
(and also the religion itself) without directly engaging their content, to culturally
marginalize these theories or interpretations, to weaken any claim that they
should be seriously considered.
Building Respect for Science
By contrast with this lack of respect
for religion, a complex sociocultural process (involving education, popular
media, advertising, social institutions, politics,...) amplifies the prestige
and authority of science, which is now the most widely respected form of knowledge
in modern society. In many situations, the authority of science can effectively
restrain a questioning of the knowledge claims constructed by scientists.
In this atmosphere, even if MN-Humility is explicitly acknowledged, the "prestige
of science" will exert a powerful influence when a scientific theory is
compared with a nonscientific theory. For this reason, critics want to
attach a label of "nonscientific" (or unscientific, or pseudoscientific)
to theories of design, even though (as outlined in Sections 7B-7D) claims for
design are based on a logical analysis of observations, which is the essence
of scientific reasoning.
In all areas of life, including science
and education, we need an atmosphere of respectful open-minded tolerance toward
religion and science. Among careful thinkers, there is no place for theories
of history based on a principle of "intrinsic conflict between science
and religion," and an either-or approach that says "faith versus reason,
you have to make a choice" is intellectually inappropriate. Without
respect, an open discussion of important issues will be harmful, not educationally
productive.
Minimizing the Depth of Discussions
Typically, there is very little discussion
about the many meanings of evolution (this omission allows
an unwarranted transfer of support from some aspects of evolution to other aspects)
or the many meanings of creation (this allows an unwarranted
transfer of criticism from "young-earth creation" theories to "design
only" and "old-earth creation" theories). When evolution
and design and creation are discussed, it is at a low level of sophistication.
And if the nature of science is examined,
this also occurs at a low level, without sufficient depth. For example,
usually there is no in-depth discussion about the goals and methods of science,
such as our reasons for thinking that a rigid methodological naturalism will
(or won't) always be an effective strategy in our search for truth about nature.
The overall effect of this low-level approach is to make theories of design
seem less satisfactory as explanations, and less worthy of inclusion in science.
This effect can be especially strong when the framing of
issues is done in a simplistic way, by exhorting students to "imagine
what could happen if we let miracles into science," or by declaring that
"of course, natural science should explain natural phenomena in natural
history by natural theories," or by scoffing at a foolish belief in miracles
(using analogies with tooth fairies and other childhood fantasies that are abandoned
by mature adults) and explaining how modern science has replaced ignorant superstition
with enlightened rationality. { There is an in-depth examination of these
ideas in Sections 7A-7D. Too often, however, the logical
arguments for including design in science are simply ignored. }
Typically, there is very little discussion
about: the faulty circular logic of MN (which bypasses the process of
science during its quick-and-automatic deductive conversion of a naturalistic
assumption into a naturalistic conclusion, and then claims "the authority
of science" for these pseudo-conclusions); the logically valid justifications
for Interpretive Humility (regarding our interpretations of natural events)
and MN-Humility (when we ask whether "not scientific" means "probably
not true"); the relationships between methodological naturalism and
metaphysical materialism (regarding the extent to which "no theistic action
in science" has the practical effect of implying "probably no theistic
action in nature"). / In biology textbooks, for example, usually
there is no discussion about the limits for what MN-science can logically claim
to explain. Instead, the book simply states with bold authority (in defiance
of MN-Humility) that "this is the way it all happened," and
lets a reader draw the intended conclusions.
Textbooks never take advantage of genuine
opportunities for well-deserved scientific humility, such as the origin of life,
even though this could be done quite easily by just describing the
five logical possibilities.
In all of these cases, an improved level
of discussion (leading to an improved level of knowledge) will usually help
design theories seem more plausible and more worthy of inclusion in science.
Conclusion (later)
{{ to the reader:
Eventually there will be a conclusion/summary for 7E, but not now. }}
7F. Cultural Factors
in Science
( the title has been changed to "
Cultural-Personal Factors in Science" )
{{ to the reader:
Section 7F is incomplete. I have similar motives (as explained earlier)
for leaving 7E and 7F-7G unfinished, but "what needs revising" is
different. In 7E there is duplication, with similar ideas being expressed
in several different contexts and combinations. By contrast, 7F and 7G
are mainly just incomplete; they are truncated, with several sections
missing (to be finished later), but what is here is in fairly good shape. }}
Harmonizing
Metaphysics and Science
Most people, especially those who care
about ideas, want their own ideas to be logically consistent. Because
a desire for personal consistency involves everything a person believes, during
a study of origins there will be mutual interactions between two types of theories,
metaphysical and scientific; each influences the other, and either or
both can be adjusted in an effort to achieve consistency.
An atheist,
who believes there is no God, has no scientific freedom in the area of origins
because only one conclusion is acceptable: some type of materialistic Total
Evolution (astronomical, chemical, and biological) with no theistic action.
An open-minded flexible
agnostic who simply says "I haven't decided yet" has a large
amount of freedom. But a closed-minded rigid agnostic
who claims "it is impossible for anyone ever to develop a rationally justified
confidence about the existence and activity of God" will be heavily influenced.
For example, if an agnostic concluded that a natural origin of the first life
is so extremely improbable that it was probably impossible, remaining agnostic
would depend on tolerating the personal inconsistency between a scientific belief
(based on evidence that natural process cannot produce life) and a metaphysical
belief (an agnostic refusal to acknowledge the evidence for a miracle-working
God). Since this inconsistency would be psychologically uncomfortable,
a rigid agnostic (who is basically an atheist) will be strongly motivated to
underestimate the plausibility of a theistic explanation for the origin of life,
because if this theory is rejected the agnosticism is protected.
Many non-theistic
religions (involving polytheism, pantheism, panentheism, animism,...,
but not the monotheism for which I'm reserving the term "theism")
are based on a metaphysics that allows flexible adjustments and significant
scientific freedom. But a nontheistic religion will produce a preference
for nontheistic theories and interpretations. And religions that claim
"eternal cycles of the universe" are inconsistent with modern Big
Bang theories in astronomy.
In principle, a theist who understands
the wide range of theistic options (yeC, oeCi, oeCm, TE) can
freely follow the evidence and logic of science to whatever conclusions seem
most plausible. But in practice each theistic position requires some adjustment
to achieve harmony between theology and science.
For a Jewish or Christian theist, five
variables that can be adjusted are: scientific interpretations of observations;
theological interpretations of the Bible; theological theories about the
frequency of various types of theistic action (with different
combinations of appearance, degree of theistic control, and context);
willingness to use miraculous-appearing theistic action for scientifically explaining
events in the history of nature; relative emphasis placed on observations
and on the Bible.
What do I think? My position -- that
the best combination of science and theology is a miraculous creation of the
first life, followed by a combination of oeCm (miraculous old-earth creation
by macromutation) and natural evolution for biological development -- is described
in Section 2F.
Cultural-Personal
Factors in Science
Scholars who study science recognize
the existence of "cultural factors" in science. These factors
are described in three parts of a model for Integrated Scientific Method that
I developed as part of my PhD project:
3. Cultural-Personal
Factors in Theory Evaluation
During all activities of science, including
theory evaluation, scientists are influenced by cultural-personal factors.
These factors include psychological motives and practical concerns (such as
intellectual curiosity, and desires for self esteem, respect from others, financial
security, and power), metaphysical worldviews (that form the foundation for
some criteria used in conceptual evaluation), ideological principles (about
"the way things should be" in society), and opinions of authorities
(who are acknowledged due to expertise, personality, and/or power).
These five factors interact with each other,
and operate in a complex social context that involves individuals, the scientific
community, and society as a whole. Science and culture are mutually interactive,
with each affecting the other.
Some cultural-personal influence is due
to a desire for personal consistency between ideas, between actions, and between
ideas and actions. For example, scientists are more likely to accept a
scientific theory that is consistent with their metaphysical and ideological
theories.
4. Theory Evaluation
Inputs for evaluating a theory come from
empirical, conceptual, and cultural-personal factors, with the relative weighting
of factors varying from one situation to another. ...
8. Thought Styles in Science
All activities in science, mental and physical,
are affected by thought styles that are influenced by cultural-personal factors,
operate at the levels of individuals and sub-communities and communities, and
involve both conscious choices and unconscious assumptions. A collective
thought style includes the shared beliefs, among a group of scientists, about
"what should be done and how it should be done."
Thought styles affect the types of theories
generated and accepted, the problems formulated, experiments done, and techniques
for data interpretation. There are mutual influences between thought styles
and the procedural "rules of the game" that are developed by a community
of scientists, operating in a larger social context, to establish and maintain
certain types of institutions and reward systems, styles of presentation, attitudes
toward competition and cooperation, and relationships between science, technology
and society. Decisions about which problem-solving projects to pursue
-- decisions that are heavily influenced by thought styles -- play a key role
in the mutual interactions between society and science by determining the allocation
of societal resources (for science as a whole, for areas within science, and
for individual projects) and the benefits that may arise from investments in
scientific research. Thought styles affect the process and content of
science in many ways, but this influence is not the same for all science, because
thought styles vary between fields (and even within fields), and change with
time.
These culture-and-science ideas
are described in more detail on another
page. And the entire 9-part model of science is available
in two versions: an introductory
outline (from which the excerpts above were taken) and a detailed
description.
Models
of Science: Descriptive and Prescriptive
During a study of science -- by historians
or philosophers, psychologists or sociologists, physicists or biologists --
the approach can be mainly descriptive (trying
to understand what science is) or prescriptive
(thinking about what science should be), or it can involve some combination
of the two. My opinions about description and prescription are that we
should recognize (and try to accurately characterize)
the influence of cultural-personal factors in science, without underestimating
or overestimating their effects. And we should try to minimize
the influence of these factors if we want to maximize the effectiveness of science
in a search for truth. In other words, I think the effects of cultural-personal
factors should be recognized and minimized.
Descriptions of Science
The existence of cultural-personal factors
is recognized by everyone who studies science, but the effects of these factors,
on the process and content of science, is a topic for intense debate.
Even though extreme views are popular in some academic circles, I don't think
these descriptions are accurate. It seems wise to avoid being naive ostriches
(by ignoring cultural effects) or silly skeptics (by exaggerating these effects).
In another paper, my own views are expressed:
"In this page,
I will make modest recommendations, based on a simple principle (that if a good
idea is taken to extremes without sufficient balance from rational critical
thinking, there may be undesirable consequences) and an assumption that undesirable
consequences should be avoided. ...
A critical thinker should know, not just
the limits of logic, but also the sophisticated methods that scientists have
developed to cope with these limitations, to minimize their practical effects.
By using these methods, scientists can develop a rationally justified confidence
in their conclusions, despite the impossibility of proof or disproof.
We should challenge the rationality of an implication, made by radical skeptics,
that "if we cannot claim certainty, we can claim nothing." Modern
science has given up the quest for certainty, and has decided to aim for a high
degree of plausibility, for a way to determine "what is a good way to bet."
... Although some skepticism is good, too much of this good thing -- without
sufficient balance by thinking critically about the claims of skeptics -- can
be detrimental to science and rationality." {quoted from "Should
Scientific Method be EKS-Rated?" where EKS has replaced X in order
to fool the filtering programs}
Prescriptions for Science
Is cultural-personal influence desirable?
Should it be encouraged and increased? Do we want scientific theories
to reflect what happens in society, or what happens in nature?
To me, it seems obvious that heavy cultural-personal
influence does not help us produce good science, especially in a search for
truth when scientists should be aiming for an objectively logical evaluation
of empirical evidence. Specifically, I think that we (as scientists who
practice science, scholars who study science, and educators who teach science)
should not be "cheerleaders" who encourage an abuse of cultural power
that produces bias in science. Ideally, the content of scientific theories
should be determined by a process of thinking that is objective and logical,
not biased and sociological.
Of course, we should not be naive by ignoring
the reality of what science is. But we should be willing to question "the
way things are" instead of being intellectually lazy by assuming that the
status quo is always optimal, that "what is" equals "what should
be." We can respect the rationality of scientists and their reasons
for adopting the current customs in science, while retaining the right to challenge
these customs in an effort to improve them. There is value in using both
of the general approaches to studying science -- description (of what is) and
prescription (of what should be) -- but remembering the distinction between
them is important.
Nonscientific Influences in Origins Science
So far, I've discussed only "science"
in general. But different areas of science are affected in different ways
by cultural-personal factors. For example, a psychologist with theories
about sociobiology can be culturally controversial, but when a chemist studies
the kinetic effects of groups attached to a benzene ring, very little societal
politics is evident.
Typically, cultural influence is stronger
in origins science than in most other fields, and it can exert a powerful influence
on opinions. In fact, many people refuse to engage in the process of science
with an open mind because they already have decided, without doing any science,
either to reject or adopt a particular theory of intelligent design. There
is often a strong preliminary assumption that is "almost a conclusion"
before a careful examination of empirical evidence has begun, and that continues
during an evaluation of evidence.
Bias and Falsity
It is important to distinguish between
evaluation bias and theory
falsity.
Even if the evaluation of a person, or
a group of people, is biased (by metaphysical beliefs or by other nonscientific
factors) in favor of a theory, this does not mean the theory is necessarily
false. But when we recognize the existence of bias, this does indicate
that an independent evaluation is warranted, that we should not simply accept
the conclusion of this person (or group) about the theory's evaluative status.
Authority and Bias
We accept the claims of physicists
about their theories. Should we also accept the analogous claims of biologists
about their theories of evolution? If not, why should the authority of
scientists be respected in one case, but challenged in the other? This
question deserves our careful attention:
First, we should ask if there are logically
justifiable reasons for caution. Although in physics there is little reason
to doubt many theories, such as the basic theories of motion, there are legitimate
questions on the frontiers of knowledge, in areas like elementary particle theories.
Similarly, some scientists are asking whether evolution (E) can produce irreducible
complexity and whether mechanisms for gradual E (or punctuated equilibrium
E) are consistent with the fossil record. When
a scientist describes evolution as "fact" we should ask, What
do you mean by evolution? Is it fossil E, common descent, micro-E,
macro-E, or Total Macro-E? If the answer is "all of these,"
we should challenge a claim that a status of "fact" is scientifically
justified.
Second, we can think about the cultural-personal
influences operating in the lives of scientists. In the current institutional
structure of evolutionary biology, an uncritical acceptance of all aspects of
E-theory (including a confident extrapolation from micro-E to Total Macro-E)
offers many professional advantages, making it much easier to obtain employment
and promotions, funding for research, publication of papers, and respectful
acceptance from colleagues. A philosophical commitment that leads to bias
is the methodological naturalism which guarantees, no matter
what the evidence indicates, that a naturalistic theory will be the accepted
scientific theory, and non-naturalistic theories won't be seriously considered.
If there are reasons to suspect that objective
evaluation is being hindered by the institutional structure and interpersonal
dynamics within a scientific discipline, there are reasons to proceed with caution
and questions, to wonder whether we should uncritically accept all conclusions
offered by this discipline. If cultural-personal factors and thought patterns
seem to be hindering the internal self-checks that, in an ideal science, would
be supplied by the critical thinking of experts within a discipline, it seems
wise to listen with an open mind to critics of the "consensus conclusions"
offered by this discipline.
When all things are considered, it seems
wise to ask whether cultural-personal influence has led to bias in evaluations
of Total Macro-E. Has this theory been given a status that is unjustifiably
high, based on an overly generous transfer of empirical support (compared with
what would be justified based on a rigorous logical analysis, done without bias)
when extrapolating from micro-E, through various levels of macro-E, to Total
Macro-E?
As a strategy for estimating the effects
of cultural-personal bias, we can try to imagine what the evaluation status
of Total Macro-E would be if there were no external factors influencing an objective
analysis and evaluation of the empirical evidence. This analytical technique
is described in another web-page,
"Just as Newton
tried to imagine the characteristics of "motion without friction,"
we can try to imagine the characteristics of "science without cultural-personal
influences." By comparing this idealized science with actual science,
we can estimate the influence exerted by various types of cultural factors,
and how these affect the process and content of science, in the short-term and
over longer periods of time. ... But how does one try to imagine what
science would be like, in a certain field, without the thought style that operates
in this field? ... One strategy for characterizing "the effects on
theory evaluation" of a thought style is to imagine several models of science,
each with a different thought style, and then compare the results of theory
evaluations (made by scientists operating in the context of each model) with
each other, and with the actual theory evaluation in the situation being analyzed."
{Tools for Analysis: Idealizations
and Range Diagrams}
What
is missing from this section?
to the reader:
As mentioned above, this section
is incomplete; its content will be expanded later. Of the unfinished
parts outlined below, the first to be finished will be Chemical Evolution
as a Test Case because I think it's an exciting idea. Eventually,
but not quickly, I'll get around to working on Theistic
Science and then the others, but in the near future these parts won't
be a high priority.
Summary of 7F (to be written later)
The section will end with a brief summary/review,
to organize and emphasize the main ideas.
Before this concluding summary, however,
there will be an exploration of other topics:
Chemical Evolution as
a Test Case (to be written in extended form later)
For judging the depth of commitment
to "a universe without miracles," the origin of life makes a fascinating
test case due to its simplicity: a) scientific analysis reveals the implausibility
of current theories for pre-biological "chemical evolution";
b) nobody claims that chemical E plays an important unifying role in biology,
so (unlike the situation for biological E) this is never claimed as a motivation
for supporting chemical E in science or education; c) a theory proposing
"a natural origin of life somewhere in the universe" is a vital component
for a metaphysical belief in "a nature without miracles."
But major textbooks never take advantage
of this easy opportunity for humility. A book may admit that we don't
yet know how life became alive, but it never questions whether life originated
by a natural process, even though it would be easy to pose this intellectually
honest, open-minded question by simply acknowledging MN-Humility
and discussing the five logical possibilities.
Methods and Origins and Culture
(to be written in extended form later)
Methods: How are the methods used
in science, including methodological naturalism, influenced by cultural-personal
factors? Questions like "Who bears the burden of proof when, as explained
in Section 7B, there can be no proof?" will be examined.
{ Of course, this topic will be connected with the examination of "theistic
science" above. } What are the interpersonal and institutional mechanisms
that are used to define and enforce the thought styles of
a scientific discipline? }
Origins: There will be a more detailed
discussion of ideas from Harmonizing Metaphysics and Science
earlier in this section, including a consideration of the practical and political
effects of various origins views, and the willingness of people proposing different
metaphysical views to allow their "origins theories" to be falsified.
Theistic Science: Sections 7A-7E
explain the benefits of an Open Science. A concept that is related, yet
different, is a Theistic Science in which a scholar's approach includes a Christian
metaphysical perspective. As Alvin Plantinga explains, "a
Christian academic and scientific community ought to pursue science in its own
way, starting from and taking for granted what we know as Christians."
{from Methodological
Naturalism by Plantinga}
Evolution and Religion: What are
the religious implications of evolution? { This will be an extension of
discussions in other parts of the overview, including "Origins and Culture"
above, and theistic evolution in Section 2E. } What are the implications
of how we interpret "natural" events. (distinctions between events
that are undirected and unguided, and between detectability and randomness,
and more)
7G. The Methods of Historical
Science
( the title has been changed to "Can
evolution be scientific?" )
{{ to the reader:
Section 7G is incomplete, as explained earlier. }}
The Methodologies of
Historical Science
The basic differences between the logical
methods used in historical science (to study events
in the past) and operations science (to study ongoing
events in the present) are introduced in Section 7C.
This section is a deeper examination of the methodologies used in historical
science.
Are theories of EVOLUTION
scientific?
Critics of biological evolution (bio-E)
sometimes claim it is not truly scientific because: we have never observed
major bio-E; E-theory does not make predictions; E-theory cannot
be falsified. Are these criticisms justified?
OBSERVATIONS: Can a theory of Total
Macro-E be scientific, even though it postulates a historical process that
occurred over long periods of time, in the distant past, so the historical events
cannot be directly observed? Yes. Both historical
science and operations science can be done
using similarly scientific methods, adapted to be effective in their differing
contexts. In historical science there are reasons for caution about conclusions,
due to the inherent limitations of historical data, but scientists have developed
methods for reducing the practical impact of these limitations. Although
these methods should be critically examined, they do not provide a reason to
automatically exclude bio-E from being authentically scientific.
PREDICTIONS: In a historical science
it is difficult to make predictions that are both precise (with specific details)
and accurate, especially over long periods of time, due to complexity,
sensitivity, and randomness:
evolutionary contexts and causal factors are complex; outcomes are sensitive
to small variations in the initial conditions; all bio-E processes involve
some randomness, and some factors (like mutation and genetic drift) are extremely
random. These elements combine to produce historical
contingency: if 10 situations with similar initial conditions were
"allowed to run" 10 times, there would be 10 different results.
But even though E-theory could not precisely predict
these results, it claims the ability to retroductively explain
each already-known result if scientists can construct a historical
scenario (connecting the initial and final historical situations) that
is consistent with the causal mechanisms of E-theory. / The goals
of scientists, during their studies of bio-E, may be to reconstruct past contexts,
to estimate the rates of evolutionary change or the importance of various causal
factors (selection, drift, isolation,...), or to build models for large-scale
and/or long-term changes. { At the end of this section
there is a deeper exploration of observations, predictions, and the process
of constructing evolutionary historical scenarios. }
FALSIFICATION: Could a theory of
natural Total Macro-E (which is the grand conclusion of bio-E) ever be rejected
by scientists? Maybe, but it would require a change of thinking, since
a rejection would be impossible if scientists continue to obey two currently
conventional "rules" of science: (1) scientific theories can
postulate only natural mechanisms; (2) a theory cannot be rejected unless
it is replaced by another scientific theory. If these naturalistic rules
are accepted (*), it is logically impossible to avoid a conclusion that naturalistic
Total Evolution -- astronomical, chemical, and
biological -- must be the scientifically accepted theory, whether or not the
scientific evidence supports it. {* Acceptance of MN is a choice, since
there are rational reasons to reject naturalistic restrictions on science, as
proposed in Section 7D. }
Does the evidence support
evolution?
Based on current scientific evidence, current
theories of chemical E (the second phase in a historical
theory of Total E) seem highly implausible. But in spite of this, there
isn't much support within the scientific community for humbly considering, as
one of the five logical possibilities, that "maybe
it never occurred." Acceptance of chemical E seems mainly due to
philosophical preference, not empirical evidence.
For bio-E the situation is different.
Why? First, the increase in complexity is much greater in moving from
nonlife to life (during chemical E) than in any step proposed for bio-E.
Second, at the starting point for bio-E, but not chemical E, there is heredity
that allows natural selection. Third, a large amount of evidence supports
many subtheories of bio-E. Fourth, in bio-E there are powerful explanatory
resources (linked genes, changes of function, developmental genes, statistical
bottlenecks,...*) that -- when combined with the creative imagination of a highly
motivated scientist, plus plenty of time for evolution to occur in a variety
of environments -- provide lots of flexibility for developing scenarios to explain
a wide range of observations. Due to this explanatory flexibility, it
is difficult to determine whether the extrapolations inherent in E-theory (from
micro-E through minor macro-E to Total Macro-E) are true. And since any
difficulties with E-theory (such as questions about irreducible
complexity or the fossil record) can be dismissed
by just saying "please be patient and eventually we'll find an explanation,"
it would be extremely difficult to falsify bio-E, even if some of its major
claims (such as Total Macro-E) were not true.
{* details: If genes are linked, an unfavorable
gene (producing a disadvantageous characteristic) can "hitchhike"
along with a favorable gene if these genes are located close together on the
same chromosome; or a characteristic (at any level, from biochemistry
to structure or behavior) can serve a temporary function before being transformed
into a different function that we now observe; or a minor change in a
gene that affects a developmental pathway can produce a major change in the
organism; or large shifts in gene frequencies can occur quickly in small
populations; and more. }
When we're wondering if E could be rejected
because it has been scientifically falsified (which differs
from a formal falsification using rigorous logic), we should remember the
many meanings of evolution because "evolutionary theory" is a
broad umbrella that incorporates many sub-theories -- fossil E, common descent,
change in a gene pool, micro-E, macro-E, Total Macro-E, and E by a specific
mechanism -- each with its own evaluative status. In the past, some sub-theories
(especially regarding mechanisms) have been rejected by scientists. But
instead of wondering whether to reject, scientists are usually asking "what
role does this mechanism play, in what situations, and how important is it in
a particular historical episode or in overall evolution?"
Can
we predict how God would design?
In 1859, one part of Darwin's challenge
to Paley's natural theology, which claims that nature reveals the designs of
God, was the existence of "imperfect adaptations" in nature.
According to Darwin, these showed that what Paley thought were actual designs,
created by God, are just apparent designs produced by evolution. More
recently, Stephen Jay Gould, pondering the implicit theological significance
of the panda's thumb, concludes that "If God had
designed a beautiful machine to reflect his wisdom and power, surely he would
not have used a collection of parts generally fashioned for other purposes.
... Odd arrangements and funny solutions are the proof of evolution -- paths
that a sensible God would never tread but that a natural process, constrained
by history, follows perforce." { Stephen J. Gould (1980), The Panda's
Thumb: More Reflections in Natural History, pp. 20-21. }
In this declaration of normative theology,
Gould confidently asserts that God "surely would
not" and "would never," as
if he really knows what God would have done, and why. But when we look
carefully at the Bible, it seems that God is not trying to produce a history
that will be viewed as maximally optimal by all humans, and does not want the
role of theistic action to be maximally obvious.
This humble theology is not welcomed by
advocates of evolution, for whom the ideal competitor is a theory with predictions
that are: (1) distinctively different from E-theory, and (2) easy
to falsify. When we look at the four major theistic options
we see that the young-earth aspects of yeC meet both qualifications. When
we turn from "age of the earth" issues to questions of design, with
independent creation (as in yeC or oeCi) there is some justification, although
not enough for the bold assertions of Gould, for expecting designs to appear
independent and optimal. By contrast, oeCm predicts that new species --
whether they are produced by a natural evolutionary process or by miraculous
macromutational creation -- will appear to be modifications of old species,
because this is what they really are! It's easy to see why yeC is often
the only alternative to evolution that is acknowledged by advocates of evolution.
Do we need a high predictive
contrast?
Because oeCm proposes occasional miracles
that by definition would be observable, is it possible to empirically distinguish
between oeCm and evolution? Maybe, and maybe not. It depends on
the precision and completeness of the available data.
Imagine the existence of extremely detailed
data -- such as complete, accurate, precise lab reports (for physiology, structure,
DNA,...) and fossils, and maybe even VCR tapes -- for all organisms throughout
an evolutionary episode. In this imaginary situation, the highly informative
data would let us distinguish between normal-appearing natural evolution (either
gradual or punctuated) and miraculous-appearing macromutational creation.
But in reality the historical data is far less informative, so it could be difficult
to distinguish between these theories.
The potential for decisive contrast is
further reduced by the flexibility of oeCm. A single theory of oeCm might
postulate the operation of several mechanisms: continual natural evolution
with rates ranging from gradual neo-Darwinian to faster punctuated equilibrium;
and occasional miraculous macromutations, with all genetic changes occurring
at once or spread over many generations, and occurring in all members of a species
(so the whole population is instantly changed) or in only one or two organisms
(so the effects take time to spread through a population). In addition,
theories of oeCm can vary from one scientist to another.
This flexibility is not welcomed by opponents
of creationism, who (as explained above) prefer a competitive theory with precise
predictions that contrast sharply with those of E-theory, and are easy to falsify.
But there is a low predictive contrast between
oeCm and E-theory, since oeCm is consistent with most evidence for most aspects
of evolution: for micro-E, minor macro-E, common descent, fossil-E, and mechanisms
of E. The major difference is that oeCm challenges the conventional conclusion
that this evidence provides strong support for Total Macro-E, and raises questions
(involving irreducible complexity and rates
of change and...) about whether undirected natural process was sufficient
to produce all existing biocomplexity in the time that was available.
For critics who complain that, compared
with evolution, oeCm isn't different enough, we can ask "Is this necessary?
Is radical differentness an essential attribute of a theory that is challenging
the status quo?" Consider Einstein's theory of motion. In almost
all ways, its observable consequences are identical to those of Newton's theory
of motion. The only differences occur at extremely high speeds.
Should we criticize Einstein's theory because it is so similar to Newton's theory
in so many ways? Should we demand that, if we are to take Einstein's theory
seriously, it must be modified so it will differ from Newton's theory in other
observable ways, so there will be a higher predictive contrast?
note to the reader:
The remainder of this section is about "details of historical science"
and "what is missing from the section."
Evolutionary
Retroductions and Predictions (details)
Evolutionary theory can be used to
propose a theory-based scenario for a particular historical period that spans
time in a series of historical situations. An initial situation, analogous
to the initial conditions for an experimental system in a laboratory experiment,
includes the initial environments and characteristics of one or more species.
Intermediate situations and a final situation are similarly defined. The
entire episode involves a sequence of situations: initial, intermediate(s),
and final.
RETRODUCTIONS: In contrast with deductive
logic that predicts by asking "If this is the initial situation and theory,
then what will be the observations for the final situation?", retroductive
logic asks a reversed question in the past tense, "These are the observations,
so what could the scenario (composed of situations and theories) have been?"
Historical retroduction is a creative-and-critical thinking strategy, with imagination
guided by deduction, whose goal is to generate a historical scenario, constructed
by combining situations with theory, that would produce the known observations
for a historical period. During retroduction a scientist can adjust either
of the sources, situational or theoretical, that are used to construct a scenario.
SCENARIOS: For a period in the history
of nature, evolutionary theorists try to construct a sequential scenario --
for the environments and characteristics of species in initial, intermediate,
and final situations -- that is consistent with the causal mechanisms of E-theory.
Part of the challenge is to decide how to use available observations to reconstruct,
as completely and accurately as possible, the details of situations at various
times. And because the Modern Synthesis of E-theory
contains a variety of mechanisms (for producing and expressing genetic variability,
and for changing the gene frequencies in a population), scientists also must
decide which causal mechanism(s) to propose for the "changes in situation"
they have proposed. Due to the flexibility in proposing situations and
mechanisms, for one episode it may be possible to construct a number of competitive
scenarios, all consistent with the core concepts of E-theory. Each scenario
can be compared with available data, to check for degree of agreement and, when
necessary, to make adjustments in the components (the postulated situations,
mechanisms,...) used in constructing the scenario.
GOALS: In analyzing an episode, the
primary goal(s) of scientists might be descriptive and/or theoretical.
/ descriptive goals: Scientists can use observations and theory-based
analysis in an attempt to reconstruct the characteristics of a past situation
in a way that is more detailed and accurate. / theoretical goals:
Scientists can analyze the observation-based situations they have proposed,
in an effort to estimate the rates of change for genotypes and the resulting
phenotypes, or the roles played by various factors (natural selection, random
drift, geographic isolation,...) in a causal mechanism, or the importance of
genes that control developmental pathways, or...
LEVELS: An evolutionary study can
involve different levels of time, change, and space. / Levels of
Time: Scientists can try to construct scenarios for periods that are short
or long. / Levels of Change: The changes being studied can
be small (within one species or a group of closely related species) or large
(involving major changes between widely divergent species). / Levels
of Space: Scientists can focus on a small area, or they can do a large-scale
biogeographical analysis that integrates the analyses already done for smaller
areas. / A wide variety of evolutionary research projects are possible,
involving analysis and synthesis for various combinations of time, change, and
space. / { Critics of evolution question the logical validity of
extrapolating from small-scale studies of micro-E and
minor macro-E (which have solid empirical support) to large-scale theories of
Total Macro-E (which have far less empirical support). }
OBSERVATIONS: Most information about
evolution comes from field studies of past events, with data about species preserved
in fossils. But scientists can also gather information in other ways,
including detailed examinations of different modern-day species (to compare
their physiological, structural, and behavioral characteristics, and the composition
of their proteins and genes) and current events (such as observing natural selection
in bacteria or mutations in fruitflies, analyzing current biogeographical patterns,
or exploring an ecosystem to learn more about the interactions of species with
each other and with their environment). Usually scientists are working
with data they already know, but not always. Sometimes predictions can
be made about data that will be observed in the future, whether this data is
from events in the distant past (like old fossils that are newly discovered)
or in the future (such as lab data about gene sequences, to be used for comparative
analysis). The inherent limitations of historical data are that for the
major events in macroevolutionary history there can be no direct observations,
and there can be no rigorously controlled experiments with reproducible data.
PREDICTIONS: In most historical sciences,
including evolution, it is difficult to make predictions that are both precise
(with specific details) and accurate. Generally, accuracy decreases when
precision increases, and when time-duration increases the accuracy and precision
both decrease. In making predictions the main obstacles to achieving "precision
with accuracy" are complexity, sensitivity,
and randomness: evolutionary situations and
causal factors are complex; outcomes are sensitive to small variations
in initial conditions; all processes involve some randomness, and some
factors (like mutation and genetic drift) are extremely random. These
three elements combine to produce historical contingency:
if similar initial situations were "allowed to run" 10 times, there
would be 10 different results. But even though E-theory could not precisely
predict the results, it claims the ability to retroductively explain each result
if scientists can construct a scenario (connecting the initial and final situations)
that is consistent with the causal mechanisms of E-theory. And despite
a typical divergence in results for long-term runs, sometimes there is convergence
such as similar environmental niches being filled by species with similar characteristics.
Some of the uncertainties in evolutionary
prediction (re: complexity, sensitivity, randomness) are roughly analogous to
those in weather prediction. And relationships for time duration are similar;
as time increases, accuracy decreases. The scientific principles of weather
forecasting allow precise short-term predictions, such as what will happen in
the next hour in a specific location. Consistencies in seasonal weather
patterns allow nonprecise long-term predictions (in Wisconsin it will be cold
with occasional snow in January, and hot with occasional thunderstorms in July)
and probabilistic predictions such as the total snowfall in January or the probability
of snow on January 16. But it would be impossible, a month in advance,
to make accurate long-term predictions about the precise times when snowfalling
or thunderstorming will occur.
When these phenomena do occur, however,
they will be consistent with theories of meteorological science (which are applications,
for complex situations, of conventional theories in physics,...) and they can
be retroductively explained using these theories. Similarly, evolutionary
theories can be used to make precise short-term predictions (sometimes), nonprecise
long-term predictions, probabilistic predictions, and (most important for historical
science) theory-based retroductions.
What
is missing from this section?
Here is a description, from Section
7C, for some of what is (or will be) in this section:
Section 7G contains a deeper analysis of
historical science, personal agency, and supernatural agency. It examines
cause-effect principles and hypothetico-deductive inference. It describes
how the process of retroductive inference is affected by predictive accuracy
and precision, which in turn are affected by contingency and complexity, empirical
and theoretical knowledge, mechanisms and agency. It explains why, although
in historical science there are reasons for caution due to inherent limitations
in the available data, scientists can develop methods for reducing the practical
impact of the limitations. These methods should be critically analyzed,
but we should not automatically eliminate historical science (whether it proposes
design or non-design) from being authentically scientific.
Some of this is here already, other parts
will be written later. There will be discussions about the following topics:
the principle (from 7C)
that in order to do empirical science, the effects (not the causes) must
be observable, because an unobservable cause (such as gravity, or theistic
action?) can produce observable effects;
the ways in which design theories are (and
are not) analogous to Newton's theory of universal gravitation; basically,
they're similar in lacking a detailed causal mechanism (Newton just said "this
is what happens" but didn't try to explain how or why by proposing a mechanism)
and because both propose that an observed effect is produced by an unobservable
cause, but they're different in level of descriptive detail and predictive precision
(unlike design theories, Newton's equation, F = GMm/rr, is a detailed description
that allows precise predictions); one is an operations theory, the other
is a historical theory; because Newton's theory has been accepted (for
centuries) as authentically scientific, this is evidence that a mechanistic
explanation is not required for science (in fact, positivists
prefer a theory that limits itself to a "description of observables"
rather than speculating about unobservable causes and mechanisms);
more about mechanisms and
matching and the principle that we should "think about testability
in a way that is logically appropriate, that achieves a match between the claims
made by design and the methods used to justify these claims"; the
types of predictions and postdictions/retroductions that typically are (and
aren't) made by historical theories (in general) and various design theories
(in particular);
historical science can involve retroductions
about recent history, not just ancient history;
more about "future
science" and "proving a negative" (re: the impossibility
of proving an impossibility?) and how we should define (and use) evaluation
criteria for deciding the extent to which a claim that "it's impossible"
is scientifically justified;
different types of evaluative
status (intrinsic and relative, for pursuit and acceptance, for truth and
utility) and interpretations (realist and instrumentalist) for the goals of
theory construction;
an in-depth analysis of irreducible
complexity (what it is and how it differs from non-irreducible complexity,
some arguments for and against its existence,...) plus links to a page that
will connect you to analyses (by others) about these questions;
a claim that E-theory would be empirically
falsifiable if we found clear evidence for out-of-order origins, such as finding
human fossils below trilobite fossils in a pre-Cambrian geological formation;
even though this claim is logically true and it does make E potentially falsifiable,
it is irrelevant if E is wrong in other ways (involving irreducible complexity
or rates of change or...) and if, regarding these other ways to falsify E, advocates
of E insist on perpetual denial by continuing to use "unrealistically imaginative
scenarios" or requests to "be patient and eventually we'll find an
answer";
more about the
two stages (or more) of design investigation; first determine whether
design occurred, then investigate the details (of how, when, why, who,...);
one general question about design is "How much intelligence is required
for intelligent design?" --- Is there design-directed action when animals
(or humans) choose who to mate with, who to kill (for a predator seeking prey),
or in the choice of strategies during a competition (with or without cooperation)
for scarce resources? Is it intelligence when animals "control and
change their environment" in ways that affect the evolution of their own
species or other species? Is there design in the construction of a skyscraper,
beaver dam, bird nest, ant hill, or coral reef? What distinctions should
we make, using what criteria? What are the functional roles (and defining
characteristics) of cognition and instinct?
And there may be more. I'm not sure
when the "unfinished topics" outlined above will be written, or even
(when they are written) whether they'll be in this section or in another page
that is an "appendix for interesting (but not essential) methodological
details." (note: Since I wrote this, the original
"Section 7G" (which you're now reading) has been moved into another
page!)
LINKS TO TOPICS IN OTHER PAGES
Most of the topics below are also in the corresponding sections of the Introductory Overview.
The topics below are in other pages:
Anthropic Principle & Fine Tuning: Multiverse and/or Intelligent Design?
simple life? The Origin of
Life (by Chemical Evolution?)
complex life? Theistic
Evolution (Evolutionary Creation) and Theology
Why isn't God more obvious? Can we have Proof for the Existence and Activity of God?
Logical Evaluations of Evolution, Creation, and Intelligent Design
Irreducible Complexity and Evolutionary Rates of Change
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