I’ve always been pretty good at math. Not trigonometry, or arithmetic, or whatever people are usually thinking of when they’re like, “Oh, you must be smart! I hate math!” But, combinatorics and graph theory and proving things and figuring out how to put hats on prisoners – I love that stuff. I went to three different high schools, and I did math team at all of them. When I was ten or eleven and my parents needed me to shut up at dinner parties, they bribed me with books of math puzzles. No joke.