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At 23:42 -0400 8/24/05, R. McDermott wrote:represent
Is it even remotely possible, Jack, that these examples might
progressivedifferent organisms that developed and died out rather than a
observations?"improvement" of a single organism? How does one test the hypothesis?
Sure, it's a likely explanation for what we can observe, but can we be
certain that there is no other possible explanation for the
degreeWould it be inconsistent, for example, for these to be "dead ends"
stemming
FROM a "human" precursor? Tied up in all this, of course, is our
of
confidence in dating technology.
Not being a paleontologist, I cannot speak with any great authority,
but it is my understanding that they seem to be pretty convinced that
your alternative hypotheses are not realistic. I cannot specify the
specific evidence that they would cite, but certainly the relative
ages of the layers in which the bones were found are relevant, and
the radioactive dating is really a pretty good clock, and it is
entirely consistent with the evidence of the geologic strata--that
is, we do not find relative geologic ages and radioactive ages to be
inconsistent. The techniques of radioactive dating are not terribly
difficult to understand, although actually carrying out the analyses
is not without its sources of error. But the ages specified for the
fossils that make up the human lineage are all found by several
mutually consistent methods, not just a single one that might leave
things open to question.
On the other hand, I do agree with your comments about the
impossibility of "proving" scientific concepts to be finally correct.
The best we can do is provide compelling evidence for their validity
(which usually includes evidence from several independent but
consistent sources), or we can prove them false.
As John Mallinckrodt has cogently pointed out, there is no proving or
disproving of ID or other religious doctrines, since they are not
science-based.
In fact they are not even hypotheses, since the only
thing they claim is that the evidence for evolution is flawed,
spotty, incomplete, or incorrect (take your pick), and so therefore,
since evolution is clearly wrong, our alternative must be correct.
Of course, if ID were to put forth some evidence *for* its validity,
then it would be testable and it could be shown to be false.
Since
they are not interested in establishing its truth except by
establishing the apparent falsity of evolution, they will never be
coerced into providing any evidence for their ideas.
As to the issue of oogenesis, that is a red herring raised only by
the creationists.
Evolution does not and never has even addressed the
issue of the origin of life. That is an as yet unsolved question
It (evolution) only considers the explanation and
implications of the observed fact that living forms change with time.
I don't see how anyone can dispute that observation, and the ID folks
don't.
Their claim is that at least some of those changes occur by
means that evolution cannot account for