TO: "tomshort@columbus.rr.com" Tom Short, "pilgrim3@gmail.com" Tim ShortDon't hold your breath waiting and expecting him to issue a retraction and a promise not to repeat this canard.
Hey guys,
This a guy from UF that had a lot of conversation with you when you last visited. I won't be at UF the next time you're slated to return, I see, by the schedule you guys have posted. You may or may not remember me from the "Nazi and Hitler" thing...?
That's why I'm writing you. I know that you visit a lot of places and bring up a lot of different arguments, so it's probably impossible to expect either of you to remember this, but we had a discussion about evolution that I wanted to point out on specific thing about: Haldane's Dilemma. We spoke for a while about it, but you probably don't recall the specifics, and they don't really matter.
The long and short of it is that this is often brought up (as it was by you) as an argument that evolution couldn't account for common descent because the rate of mutations is not fast enough. I was just reading an article and I thought it was a very good resource to share with you about this topic.
http://www.pandasthumb.org/archives/2007/07/haldanes_nondil.html
First, recent genomic studies have proven that there is *much* less difference between humans and chimps at the genetic level than previously thought -- of the 14,000 genes studied, only 154 had any phenotype-affecting changes in them whatsoever, and of those, the vast majority were simple point mutations or frame shifts. Second, using Haldane's own work, creationist Walter Remine surmised that only 1,667 phenotype-impacting mutations could occur within the 10M years since we shared a common ancestor with chimps. Third, Haldane was quite misinterpreted by creationists: he never rejected common ancestry, and instead argued brilliantly for it. This should tell you that there is a major problem in citing him to "refute" evolution. Fourth, and most important of all, Haldane's assumptions were undermined by later work.
However, let's assume that you can still validly cite Haldane. Now, being generous, Ian goes through in the article I linked and shows that just using 6M years instead of 10M, and giving up all sorts of ambiguities to favor the creationist accounting, there is still plenty of evidence showing the rate of evolutionary change is perfectly compatible with the observed genomic disparities between ourselves and chimps.
Basically I'm writing you in the hopes that you will consider revising your arguments to make them a bit more intellectually honest. I know you aren't a scientist, and that many of your arguments are prima facie appeals to design, rather than detailed critiques of evolutionary biology. Given both of these two things, and the above-explained problems with using Haldane's work as a "refutation" of evolution, I simply hope you'll stick with integrity and use other appeals and arguments for theism.
Really it's too bad I can't see you again this year; I enjoyed our exchanges.
All the best.
Warmly,
D
http://www.gatorfreethought.org
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