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When Everyone Knows That Everyone Knows . . .: Common Knowledge and the Mysteries of Money, Power, and Everyday Life

When Everyone Knows That Everyone Knows . . .: Common Knowledge and the Mysteries of Money, Power, and Everyday Life

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Book Details
  • Author:Steven Pinker
  • Publisher:Scribner
  • Pages:384 
  • Condition: New
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Product Description

From one of the world’s most celebrated intellectuals comes a brilliantly insightful work that explores how we think about each other’s thoughts about each other’s thoughts—ad infinitum. It may sound impossible, but Steven Pinker shows that we do it constantly. This awareness, which we perceive as something “out there,” is called common knowledge, and it profoundly shapes our social, political, and economic lives.

Common knowledge is essential for coordination—making complementary choices like driving on the right, using paper currency, or rallying behind a leader or movement. It’s also vital for social order: meeting someone at a set time and place, speaking a shared language, and forming lasting relationships of friendship, romance, or authority. Humans possess a natural sense for common knowledge and signal it through laughter, tears, blushing, eye contact, and direct speech.

Yet, we also work to avoid it—ensuring that even if everyone knows something, they can’t be sure everyone else knows they know it. This gives rise to benign hypocrisy, veiled bribes, sexual innuendo, and the pretense of ignorance.

Pinker reveals how this hidden logic explains much of human behavior: financial bubbles, revolutions, diplomacy, social media outrage, and even first-date awkwardness. Through witty examples drawn from literature, art, and comedy, he illuminates the paradoxes of social life and answers fascinating questions such as:

  • Why do people hoard toilet paper at the first sign of crisis?
  • Why are Super Bowl ads filled with crypto commercials?
  • Why do voters choose candidates they think others prefer?
  • Why did Russian authorities arrest a protester holding a blank sign?
  • Why is saying goodbye on the phone so awkward?
  • Why would total honesty make life unbearable?

With his trademark clarity and humor, When Everyone Knows That Everyone Knows… is a riveting exploration of the harmonies, hypocrisies, and hidden logic of human interaction—revealing the deep psychology that governs how we understand, cooperate with, and deceive one another.

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