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How Common Knowledge Rules the World

How Common Knowledge Rules the World

Update: 2025-09-291
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Today’s big ideas come to us from Harvard cognitive psychologist, public intellectual, and bestselling author Steven Pinker, who’s out with a new book called When Everyone Knows That Everyone Knows… Common Knowledge and the Mysteries of Money, Power, and Everyday Life​. In it, he shows how public, shared awareness shapes everything from markets and politics to first dates and social media pile‑ons, and why understanding it can make you a sharper decision‑maker and a better collaborator.


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How Common Knowledge Rules the World

How Common Knowledge Rules the World

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