Geoffrey Miller is an evolutionary psychologist who wrote The Mating Mind (2001) and Spent: Sex, Evolution, and Consumer Behavior (2009). He has a B.A. from Columbia and a Ph.D. from Stanford, and has 97 publications on diverse topics: human mate choice, ovulatory cycle effects, female orgasm, status-seeking, conspicuous consumption, language, art, music, humor, creativity, and emotions, and the evolutionary genetics of intelligence, personality traits, and mental disorders. He works at NYU Stern Business School and University of New Mexico. He’s given over 150 invited talks around the world, and plans to start CrossFit any day now.