“Obviously there have been some very poor uses of evolution in the 20th century. Social Darwinism for instance and we point out in the book that that's not a viable way of using evolutionary knowledge. What's going on with society is entirely different from what goes on in nature. We make that distinction clear. And I use anarchy as a metaphor. I think good literature, whether it's fiction or non-fiction, still has to have a good deal of metaphor in it.”
