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.Follow Armchair Expert on the Wondery App or wherever you get your podcasts. Watch new content on YouTube or listen to Armchair Expert early and ad-free by joining Wondery+ in the Wondery App, Apple Podcasts, or Spotify. Start your free trial by visiting wondery.com/links/armchair-expert-with-dax-shepard/ now.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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“What did the council decide on item 42?” — answered with the speaker and the moment.