by Jim Holt (New York Times)
And why should the human reproductive system be so shoddily designed? Fewer than one-third of conceptions culminate in live births. The rest end prematurely, either in early gestation or by miscarriage. Nature appears to be an avid abortionist, which ought to trouble Christians who believe in both original sin and the doctrine that a human being equipped with a soul comes into existence at conception. Souls bearing the stain of original sin, we are told, do not merit salvation. That is why, according to traditional theology, unbaptized babies have to languish in limbo for all eternity. Owing to faulty reproductive design, it would seem that the population of limbo must be at least twice that of heaven and hell combined.
It is hard to avoid the inference that a designer responsible for such imperfections must have been lacking some divine trait—benevolence or omnipotence or omniscience, or perhaps all three. But what if the designer did not style each species individually? What if he/she/it merely fashioned the primal cell and then let evolution produce the rest, kinks and all? That is what the biologist and intelligent-design proponent Michael J. Behe has suggested. Behe says that the little protein machines in the cell are too sophisticated to have arisen by mutation—an opinion that his scientific peers overwhelmingly do not share. Whether or not he is correct, his version of intelligent design implies a curious sort of designer, one who seeded the earth with elaborately contrived protein structures and then absconded, leaving the rest to blind chance.
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