 This seems to be a bit of a puzzle because people will generally say that they don't work on the things that actually are important. All right, now I will confess. I, too, occasionally work on a guilty pleasure issue that I recognize is not very important. It just happens to be fun. But I do strive to focus on what I see as the biggest issues. When I write a book, it's not just to entertain me. It's to take ideas that I think are very important on issues that are underexamined and to bring them to a much wider audience.