Definitions Crucially Important

From: David Bradbury (dabradbury@mediaone.net)
Date: Fri Feb 25 2000 - 22:29:37 EST

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    As one who has been sampling this site for some time I am truly
    fascinated by the wide range of
    positions stated ... and the reason and logic (or lack thereof) offered
    in the various presentations.

    While there are frequent references to the importance of proper
    "definitions" in many of the
    claimed assertions ... I am disappointed by the ambiguousness in
    definitions actually supplied.
    From past experience I've found the great bulk (90%+?) of all
    disagreement in the
    creation/evolution controversy is more reflective of poor semantics
    (imprecise, careless, selective,
    deceptive definitions) than on actual scientific differences. This
    also appears to be the case in
    many of the messages published here.

    To illustrate this point, we revert to basics. Can we spell out
    mutually acceptable, scientifically
    unambiguous definitions for key terms used? IF we are all using the
    words to convey essentially
    the same meaning (within the context of tax-supported high school and
    college level science
    curricula) as we must if we hope to communicate effectively, this should
    be no difficult task. To
    the extent we have difficulty establishing mutually understood and
    acceptable definitions for key
    terms (and past experience suggests we will), the semantic nature of
    on-going disagreements will
    be identified and the door opened for more productive dialog in the
    future.

    Precise definition of just a few basic words as, "evolution", "science",
    "religion" and "creation" will
    be more than enough to illustrate this point.

    While you might be collecting your thoughts on all of these (and others
    of your choice), let us
    focus initially on just one. EVOLUTION. Specifically, what is it that
    you intend to convey to
    your readers when you use this un-hyphenated generalized biological term
    in the context stated
    above? Is this intended definition scientifically (ambiguously) precise
    and one generally understood
    by your audience?

    Ms. Brassfield responsibly states her intended definition for evolution
    in several recent exchanges
    as being .... "a change in the gene pool of a population through
    time.". While this broad,
    imprecise criteria is often cited by evolutionists as supporting their
    contention that evolution is
    'scientific', it is generally considered too ambiguous to be accepted
    by non-evolutionists or others
    who deplore careless use of language. The undefined 'changes' as
    referenced are equally
    (ambiguously) descriptive of other more limited terms (as 'variation',
    'artificial' selection,
    'extinction', etc.) and about which there is indeed NO argument.

    Non-evolutionists generally understand, and require, a more rigorous
    criteria when defining the
    term 'evolution'. They hold that the 'changes' involved must be
    totally the result of non-intelligently
    directed random matter/energy interactions (which excludes 'artificial
    selection') and that the
    'changes' must, over time, result in the accumulation of increasingly
    complex, biologically
    beneficial DNA code in a pre-existing gene pool (which precludes
    'variation' and degrading
    changes leading to 'extinction').

    In the realm of scientific verification there is a world of difference
    in establishing the compelling
    level of certainty required of "scientific" "theory" (both terms also
    requiring precise definition) for
    Ms. Brassfield's definition of 'evolution' as compared to the more
    rigorous (less ambiguous)
    definition followed by non-evolutionists. We hope this hasty example
    will encourage others to
    participate in the drafting of at least a minimal GLOSSARY OF TERMS
    clearly expressing the
    precise criteria that are both necessary and sufficient to unambiguously
    differentiate various key
    words from all other words ... particularly from their opposites.

    Should a number of reasonably intelligent and articulate folks share
    their thoughts, this shouldn't be
    much of a task. But should reaching a consensus of meaning mutually
    acceptable to both
    evolutionists and non-evolutionists alike prove more difficult than most
    folks anticipate, the
    magnitude of the roll semantics plays in this dichotomy will at least be
    better understood and
    openly established.

    Please do take a moment at your early convenience and forward me as
    concise a definition for
    'EVOLUTION' (what the term is intended to convey when appearing
    unhyphonated in the high
    school - college biological science curricula context) ... along with
    any other constructive
    comments suggestions you may have. The following may be helpful in
    further explaining where
    I'm coming from.

    "An important operational rule is that each word in a scientific
    statement must carry exactly
    the same meaning to all scientists, at least to all who practice in a
    given field or area of
    science. This rule requires that all words be precisely defined.
    Scientists must be very fussy
    about definitions, even if that seems painful to others. (Strahler, Dr.
    A. N.; Science and Earth
    History: The Evolution/Creation Controversy; Prometheus Books; Pg.6;
    1987)

    "The truth or falsehood of all of man's conclusions, inferences, thought
    and knowledge rests
    upon the truth or falsehood of his definitions." (Rand, Dr. Ayn;
    Introduction to Objectivist
    epistemology ; Pg. 49; 1990)

    "...and it is necessary to define these words or else give up using them
    and coin others."
    (Pirie, N.W.; in Molecules to Man; Blue Version, 3rd Edition, Pg. 141;
    1976)

    "Meaningful discussion is impossible unless disputants agree on the
    definition of key terms,
    and deductive argument is unreliable if it employs ambiguous words."
    (McDonald, Daniel;
    The Language of Argument; Pg, 107; 1975)

    "A chain of reasoning is no stronger than its weakest link. Therefore,
    before it is accepted
    each component of a scientific explanation should be clearly defined,
    demonstrated and
    documented. It should be testable and able to pass the tests." (Fezer,
    Dr. Carl D.; REPORTS;

    National Center for Science Education; Vol. 11, No. 3; Pg. 17; Fall
    1991)

    "On the conceptual level, you define your terms, and if anyone disagrees
    and is subjective
    about it, you make him define his." (Rand, Dr. Ayn; Introduction to
    Objectivist Epistemology;
    Pg. 219; 1990)

    "...we shall forbid surreptitious alternations of usage." (Popper, Dr.
    Karl; Logic of Scientific
    Discovery; Pg. 84, 1959)

    "If you would speak with me, define your terms." (Descartes;
    paraphrase, actual source
    temporarily misplaced.)



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