 When you were getting into science the way you did in college, did you expect that you'd be writing so many books later in your career? Well, I admired so many science writers like Isaac Asimov and Arthur C. Clarke, and I read a lot of science books and kind of pictured myself as a science writer. But then I got into my Ph.D., which was very mathematical, and I immersed myself in the mathematics. And even though I enjoyed that and found it challenging...