<<I agree that there is much more to humanity than building things. But I can
not observe those extra things even in you. That is, I can not observe your
inner states nor can you observe mine.>>
But you can observe physical evidence of inner states. That is why you think
that a flute is evidence of humanness--it is evidence of an inner musical
sense.
I believe the greatest evidence for the sudden appearance of biblical humanity
is shaman-art. It is so unlike anything that came before it, and so sudden and
rapid in appearance. For me, the inference is clear. Is there anything to
indicate a gradual development of this sense? No. If not gradual, then what?
Jim