When Michael Behe published Darwin’s Black Box, there was a loud “Huzzah!” from the creationists — they had new buzzwords, like “irreducible complexity”, for the first time in 50 years, and they had a scientist with a legitimate Ph.D. to cite as an authority claiming evolution couldn’t happen. The “science” was crap, but it was a strong rhetorical play, and we had to respond vigorously to it. It was garbage, but all the back-and-forth enhanced Behe’s reputation. I read it thoroughly and contributed to online discussions about the fallacies in it.
Then he came out with a second book, The Edge of Creation, and the creationists all went “huzzah?”, because there was nothing new in it, no spark of rhetorical flourish they could use in debates, but there was an implication that caused them worries. Behe was claiming you could see the hand of the Designer in ongoing processes, and that It was actively engineering diseases and parasites to kill us right now. Whoops. It was still garbage, but it didn’t trigger a surge of creationist activity that needed refutation. I skimmed it, threw it aside, ignored it.
Now he has a third book, Darwin Devolves, where he returns to the same old stagnant, tainted well and says the same old things, and it’s only going to inspire the die-hard Behe fanchildren, and isn’t going to challenge any scientists at all. I’m not going to pick up a copy. Not going to read it. Not going to critique it. Everything has already been said, he has nothing new that we need to refute, and he’s nothing but yet another crackpot…just one who has a tenured position at a legitimate university, even if he is something of a pariah to his colleagues.
But because he got creationists excited 20 years ago, someone had to suffer through his book for Science magazine, and the sacrificial victims are Nathan Lents, Joshua Swamidass, and Richard Lenski, who write that a biochemist’s crusade to overturn evolution misrepresents theory and ignores evidence.
Behe is skeptical that gene duplication followed by random mutation and selection can contribute to evolutionary innovation. Yet there is overwhelming evidence that this underlies trichromatic vision in primates, olfaction in mammals, and developmental innovations in all metazoans through the diversification of HOX genes. And in 2012, Andersson et al. showed that new functions can rapidly evolve in a suitable environment. Behe acknowledges none of these studies, declaring an absence of evidence for the role of duplications in innovation.
Behe asserts that new functions only arise through “purposeful design” of new genetic information, a claim that cannot be tested. By contrast, modern evolutionary theory provides a coherent set of processes—mutation, recombination, drift, and selection—that can be observed in the laboratory and modeled mathematically and are consistent with the fossil record and comparative genomics.
Deja vu, man. These are exactly the complaints everyone made about Darwin’s Black Box: he didn’t seem to understand modern evolutionary theory, he ignored the multiple mechanisms of evolutionary change, he blithely pretended the evidence against his thesis didn’t exist, and he just sailed on, smug in his ignorance. Nothing has changed. His formula is the same. The same counter-arguments still apply.
Let’s all just ignore this rehash, OK?