Steven Pinker has spent his academic and literary career thinking about thinking, and the ways societies have been shaped by our neurology and what we do with it. He is a professor at Harvard University and author of 13 books. The latest: "When Everyone Knows What Everyone Knows: Common Knowledge and the Science of Harmony, Hypocrisy and Outrage". On this episode of Wonk, he speaks with host Amanda Lang about the book, the impact of social media, AI and more.