XKCD is one of our favorite webcomics - and it started out as doodles in Randall Munroe's college notebooks. Munroe describes his work as "a webcomic of romance, sarcasm, math, and language." In this episode, he joins Kevin to talk about how he got started, where his inspiration comes from and his latest book, What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions. Find out why a surprising number of cartoonists are physicists by training, explore the joy of seeking answers to seemingly impossible questions, and much more!