Uncommon Descent Contest Question 3: Winner announced
Contest question 3:
Question: In 400 words, to be judged in two weeks, and printed as a post: What do we really know about human evolution that could not simply be overturned by a new find? The winner will receive a free copy of Expelled. (Sorry for delay judging this one. I was at a science writers’ convention up north.)
We can know that random changes in human DNA produce undesirable results such as cystic fibrosis. This observation holds true even if the traditional “change agents” such as copying errors are replaced by others, as the link between the altered DNA and corresponding defects is well established. These observed changes have also produced a generation in which it is undesirable for closely related men and women to reproduce. These observable traits of mutations can certainly be extrapolated back to any previous generation possessed DNA subject to change.
This is a proposed a quality, or fact, about observable evolution. It is not the same as a rote fact about humanity (brain capacity etc.). It is not shown that damaged DNA has produced any quantifiable or observable trait except those involving defects, however there is a direct and provable correspondence between altered DNA and the consequences listed above.
Notice any claims of beneficial mutations (I know, but pretend with me) do not undo this claim since undesirable effects are certainly observed. The reverse is not true, as the idea of beneficial mutations stands to be disproved as a statistical impossibility as the complexity of the information found in DNA becomes more evident. The other way to reverse this observation would be to claim that human DNA in the past was not changeable, but that ends the debate anyway.
JoeNC, the author of the post, needs to be in touch with me at oleary@sympatico.ca, with a valid postal address, so I can mail him his prize. His name will not be added to a mailing list.
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