When the novelist, biographer and literary critic A.N. Wilson came out recently as a Darwin skeptic, in comments to the New Statesman the book he mentioned as substantiating his skepticism is James Le Fanu’s new and outstandingly readable and informative book Why Us?: How Science Rediscovered the Mystery of Ourselves (Pantheon). For the moment, this is probably the one book you should buy for your Darwin-devoted friends — if you are going to buy just one. In this little series, continued from last week, I am just trying to give a flavor of the book.
Le Fanu is a distinguished British physician and author of peer-reviewed medical journal essays. He exemplifies the Talmud’s note of advice that a person should “Teach your tongue to say ‘I do not know'” (Berachot 4a). Le Fanu knows a lot and wears his erudition very lightly, but his main point is that the more science reveals about the most important question a human can ask — What is man and how did he come to be? — the more we have to admit that we don’t know.
Le Fanu demonstrates this by masterfully recounting the epic crack-up of expectations that prevailed till recently for the prospects of three scientific enterprises. Darwinian evolution, genetics, and brain research were supposed to combine to give a compelling, coherent and united account of man’s origin and nature. They did no such thing and the prospect of their doing so in the future appears hopeless.
Among other things, for example, the Human Genome Project and the Chimpanzee Genome Project revealed the similarity in the genomic coding region of humans and chimps — 98 percent interchangeable, as we’re always reminded. Something like that figure includes other vertebrates as well, such as the modest mouse. Le Fanu readily agrees that this suggests evidence of common descent.
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