In this wide-ranging conversation, renowned author and professor Steven Pinker describes that while he resists being called an "optimist," as the label doesn't necessarily suit his temperament, his deep dives into historical data have convinced him that the world is indeed getting better and has been on a steady trajectory since the days of the Enlightenment, the subject of one of his many acclaimed books. Dr. Pinker also describes why he believes so many intellectuals resist acknowledging that the world is making progress; and adds, ironically, that self-described "progressives" often have the toughest time with this. He also shares his concerns about the policing of speech on college campuses – including Harvard – and the deleterious effects this has on students' wellbeing.