Steven Pinker is Johnstone Professor of Psychology at Harvard, an elected member of the National Academy of Sciences, a two-time Pulitzer Prize finalist, a Humanist of the Year, one of Time’s “100 Most Influential People in the World Today,” and sits on Persuasion’s advisory board. His latest book is When Everyone Knows That Everyone Knows...: Common Knowledge and the Mysteries of Money, Power, and Everyday Life.

In this week’s conversation, Yascha Mounk and Steven Pinker discuss why common knowledge is the most important psychological concept you’ve never heard of, why authoritarian states are hostile to it, and where to find someone you’ve lost in New York.

Email: [email protected]

Podcast production by Mickey Freeland and Leonora Barclay.

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