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

Bestseller

Author: Steven Pinker

Narrator: Fred Sanders

Unabridged: 9 hr 1 min

Format: Digital Audiobook Download

Published: 09/23/2025

Includes: Bonus Material Bonus Material Included


Synopsis

From one of the world’s most celebrated intellectuals, a “fascinating” (Financial Times), brilliantly insightful work that explains how we think about each other’s thoughts about each other’s thoughts, ad infinitum.

It sounds impossible, but Steven Pinker shows that we do it all the time. This awareness is called common knowledge, and it has a momentous impact on our social, political, and economic lives.

Common knowledge is necessary for coordination, for making arbitrary but complementary choices like driving on the right and coalescing behind a political leader or movement. It’s also necessary for social coordination: everything from meeting up at a time and place to forming enduring bonds of friendship, romance, or authority. Humans have a sixth sense for common knowledge, and we create it with signals like laughter, tears, blushing, eye contact, and blunt speech.

But people also may strive to avoid common knowledge—to ensure that even if everyone knows something, they can’t know that everyone else knows they know it. And so we get rituals like benign hypocrisy, veiled bribes and threats, sexual innuendo, and pretending not to see the elephant in the room.

Pinker shows how the hidden logic of common knowledge can make sense of many of life’s enigmas: financial bubbles and crashes, revolutions that seem to come from out of nowhere, the eruption of cancel culture, and even the awkwardness of a first date.

About Steven Pinker

Steven Pinker is the Johnstone Professor of Psychology at Harvard University. He has won many prizes for his teaching, his research on language, cognition, and social relations, and his twelve books, including The Language Instinct, How the Mind Works, The Better Angels of Our Nature, and Rationality. He is an elected member of the National Academy of Sciences, a two-time Pulitzer Prize finalist, and one of Time’s “100 Most Influential People in the World Today.”


Reviews

Goodreads review by Stetson on July 18, 2025

Although this is likely a lesser work in the Pinker Pantheon, When Everyone Knows That Everyone Knows... cleverly examines of the oft overlooked concept of common knowledge. Pinker is quite precise about what "common knowledge" is, stating it's a collective epistemic state that results only when A kn......more

Goodreads review by Read By Kyle on October 16, 2025

I've really enjoyed the other Pinker books I've read but this book was straight up white noise. Either I got dumber (possible) or there is just no central thesis to this book at all, it's just a series of anecdotes and vague points that add up to nothing. This book is like the over explained version......more

Goodreads review by Brian on October 03, 2025

This is another brilliant Steven Pinker book. It is full of insights, logic, intelligent observations, as well as a little bit of clever humor. Here, Pinker examines common knoladge. The title of the book explains what that term means. The book illuminates just how important that this concept is. Co......more

Goodreads review by Angie on August 02, 2025

Thinking about what other people think I discovered Steve Pinker’s books a number of years ago via his wonderful description of the psychology of language in The Language Instinct and have enjoyed his discussions of how we think in many aspects of our lives in a number of his other books. When Everyo......more

Goodreads review by Adam on October 10, 2025

Another hit by Steven Pinker. The concept took a bit to wrap my head around but once I did it was evident that it had serious implications. Humans sure are complicated! Sometimes I wonder if I am a bit broken because I don't navigate the nuanced world of layers of pretending, but I suppose we all do......more


Quotes

"Fred Sanders delivers this audiobook about metacognition with a perfect balance of erudition and approachability. Psychology professor Pinker describes how we understand our thoughts and how we know what others are thinking. To frame this discussion, he evokes the classic moment from the ‘90s television show “Friends,” the one in which Phoebe realizes “they don’t know we know they know!” That scene played for laughs, but Pinker is seriously applying this approach to the understanding of shared knowledge, as well as how we can be misunderstood. Social media is rife with examples of attempts at humor or sarcasm being taken out of context. Sanders doesn’t oversell these themes; he delivers Pinker’s ideas clearly, trusting that listeners will follow them."