Steven Pinker (When Everyone Knows That Everyone Knows: Common Knowledge and the Mysteries of Money, Power, and Everyday Life) is a cognitive psychologist, psycholinguist, and author. Steven returns to the Armchair Expert to discuss how in general things have gotten better, that tracking the data can make one more optimistic than reading headlines, and the differences between private knowledge and common knowledge. Steven and Dax talk about how evolved language generates common knowledge, the role of conventions and ritual in human coordination, and the power of Super Bowl advertisements. Steven explains the counterintuitive fact that announcing one’s philanthropy actually does more good, why we have to expose ourselves to a universe of ideas to find out which ones are good, and why he’s not afraid of AI. Watch Armchair Expert episodes: https://www.youtube.com/playlist?list=PLzPEuwClyOzDdlrAmU-IwKncG87qrF7Vw Follow Armchair Expert on social: https://www.instagram.com/armchairexppod https://www.facebook.com/ArmchairExpPod/ https://twitter.com/armchairexppod Connect with Wondery https://wondery.com/shows/armchair-expert-with-dax-shepard/ https://www.facebook.com/WonderyMedia https://twitter.com/WonderyMedia https://www.instagram.com/WonderyMedia https://www.tiktok.com/@wonderymedia About the Show: Hi, I’m Dax Shepard, and I love talking to people. I am endlessly fascinated by the messiness of being human, and I find people who are vulnerable and honest about their struggles and shortcomings to be incredibly sexy. I invite you to join me as I explore other people’s stories. We will celebrate, above all, the challenges and setbacks that ultimately lead to growth and betterment. What qualifies me for such an endeavor? More than a decade of sobriety, a degree in Anthropology and four years of improv training. I will attempt to discover human “truths” without any laboratory work, clinical trials or data collection. I will be, in the great tradition of 16th-century scientists, an Armchair Expert. Watch Armchair Expert every MONDAY, WEDNESDAY, and FRIDAY here on Youtube! Listen to episodes ad-free by joining Wondery+ in the Wondery App, Apple Podcasts or Spotify. Start your free trial by visiting https://wondery.com/shows/armchair-expert-with-dax-shepard/ Chapters: 0:00 – Intro 1:05 – Interview with Steven Pinker 1:36:07 – Fact Check #armchairexpert #daxshepard #stevenpinker