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Glenn Loury welcomes Steven Pinker to discuss his new book, When Everyone Knows That Everyone Knows. Pinker—author of The Language Instinct, The Blank Slate, The Better Angels of Our Nature, and Rationality—explains how “common knowledge” works in everyday life. Drawing on vivid examples—from a Soviet-era joke about dissent to the rise and fall of GameStop and crypto ads during Super Bowl LVI—Pinker shows how shared awareness shapes seduction, threats, markets, and politics. Loury and Pinker explore how strategic ambiguity, spirals of silence, hierarchy, and nuclear policy all hinge on a familiar question: not who knows what, but who dares to say aloud what everyone knows.

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