Darwin's Doubt

Darwin said that natural selection selects for functional advantage. It preserves those things that pass on an advantage in the competition for survival. The intermediate stages have no functional advantage, and so you couldn't build this up gradually. And that's a big part of his argument. If you find someone who's skeptical about evolution, they're either ignorant, stupid, wicked or insane. Right. Okay. I want to ask you about your book, do you mind? Not at all. Because we've got a lot of copies here, we've got to move some product. But it's very, very impressive. It's called Darwin's Doubt. Tell us, what does that title mean?