There may be some in the audience who go back far enough to remember the commercials for Doublemint chewing gum, where a set of twins would tell us how you would receive “double the pleasure” from a single stick of gum, or something like that. I feel a little bit that way about my next guest. She is the president of one of the most prestigious colleges in America, as well as a preeminent cognitive scientist doing groundbreaking research. And as you’ll soon hear, the two are quite related. She is Sian Beilock, the eighth president of Barnard College and the author of a number of books including Choke: What the Secrets of the Brain Reveal About Getting It Right When You Have To.