The Argument Clinic

As far as the rise of mammals, we read “In the early Cenozoic era, after the dinosaurs became extinct, the number and diversity of mammals exploded. In just 10 million years – a brief flash of time by geologic standards – about 130 genera (groups of related species) had evolved, encompassing some 4,000 species.” (PBS)

So there is no question about the explosion here, just a question about ancestry. Since the emphasis is on explosion, not exactly a sinking of the ship.

“He supposes that the fact that we observe a universe that has the characteristics to produce us is likewise supportive of the existence of his god, but it’s simply not; it’s as surprising as the fact that our legs are exactly the length required to reach the ground.” But that’s not a refutation, that’s not even to the point.

“Here, he simply resorts to a long‐time favorite tactic of creationists: asserting that the fact that abiogenesis is a difficult nut to crack means that it is impossible to crack. Never mind the progress that is being made; it is always easy to pooh‐pooh scientific progress especially when there are unresolved questions remaining.”

But the progressions are few and far between, and miniscule compared with the problems of decades ago remain (Koonin estimates the probability of the first biomolecule as on the order of 1 in 10^1018, in “The Logic of Chance”), and new problems appear (the appearance of the interactome, for instance).

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