Randall Munroeis the author of the #1New York TimesbestsellerWhat If?, the science question-and-answer blogWhat If, and the popular webcomicxkcd. A former NASA roboticist, he left the agency in 2006 to draw comics on the Internet full-time, supporting himself through the sale of xkcdt-shirts, prints, posters, and books. He likes candlelight dinners and long walks on the beach. Very long walks. Lots of people say they like long walks on the beach, but then they get out on the beach and after just an hour or two, they say they re getting tired. Bring a tent. He lives in Massachusetts.