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Common knowledge—what we assume everyone knows—can help us make sense of life's biggest social, political, and economic questions.

One of the world's top public intellectuals | Author of Rationality, Enlightenment Now, and When Everyone Knows That Everyone Knows . . . | Harvard Professor

Steven Pinker | One of the World's Top Public Intellectuals | Author of Rationality: What It Is, Why It Seems Scarce, Why It Matters | Harvard Professor
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The Case for Reason, Science, Humanism, and Progress

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Author’s Corner with Steven Pinker

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Is Violence Actually in Decline?

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What Defines Human Nature Today?

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Chalking It Up to The Blank Slate

Lavin Exclusive Speaker

How do we know what everyone else is thinking? And how do our own thoughts about other people’s thoughts affect our everyday lives? Leading intellectual Steven Pinker, author of Bill Gates’s favorite book of all time, asks the big questions about human progress and sets out, in public, to answer them. In his latest book, When Everyone Knows That Everyone Knows . . ., he reveals the truth behind common knowledge—the way we think about each other’s thoughts—and how it can help us make sense of many of life’s enigmas, from financial bubbles to social media mobs. Bill Gates calls it “one of the most insightful books I’ve read about what makes us human and how we understand each other.” Named by TIME as one of the 100 Most Influential People in the World, Pinker draws on his incredible body of work, including the celebrated books Enlightenment Now and The Better Angels of Our Nature, to offer fascinating talks on who we are and where we’re going.

Enlightenment Now is not only the best book Pinker’s ever written. It’s my new favorite book of all time.”— Bill Gates on Enlightenment Now

A provocative speaker, much in demand, Steven Pinker is a cognitive scientist who has been named by TIME as one of the 100 Most Influential People in the World. His keynotes have helped millions demystify the science behind human language, thought, and action. Pinker is a Harvard professor, a TED speaker, and a bestselling author, twice nominated for the Pulitzer Prize. Highly respected in the scientific community, his work and opinions are extensively covered in the mainstream media, and have won a wide general audience.

His latest book, When Everyone Knows That Everyone Knows . . ., is a riveting look into what we understand as common knowledge, and how they can help us make sense of topics as varied as financial bubbles and crashes, revolutions, diplomacy, social media mobs, and even the awkwardness of a first date. Steven offers fascinating and vital insight into the paradoxes of human behavior, and invites us to understand the ways we try to get into each other’s heads and the effect that has on our social, political, and economic lives. Jonathan Haidt, #1 New York Times bestselling author of The Anxious Generation, writes that “Reading Steven Pinker is always a delight. If Pinker’s ideas become common knowledge, we’ll be far better equipped to handle the massive disruptions already arriving in our hyper-networked world.”

In his previous book, Rationality: What It Is, Why It Seems Scarce, Why It Matters, Pinker argues that we fail to take advantage of the most powerful tools of reasoning discovered by some of our best thinkers: logic, critical thinking, probability, correlation and causation. These tools are not a standard part of our educational curricula, and have never been presented clearly and entertainingly in a single book—until now. Recently named one of Amazon’s best science books of the year, Rationality is an enriching, inspiring, and captivating new read on how to harness rationality to improve our personal lives and advance social progress.

In his earlier book Enlightenment Now: The Case for Reason, Science, Humanism, and Progress Pinker argued that, despite fear-mongering and political upheaval, the world is getting better: peace, prosperity, knowledge and happiness are on the rise. “The world is getting better, even if it doesn’t always feel that way,” wrote Bill Gates, in a review of the book. “I’m glad we have brilliant thinkers like Steven Pinker to help us see the big picture. Enlightenment Now is not only the best book Pinker’s ever written. It’s my new favorite book of all time.” The New York Times included the book in its year-end list of 100 Notable Books, and NPR and Esquire both named it as one of the best books of the year. Enlightenment Now was the follow-up to The Better Angels of Our Nature: Why Violence Had Declined, which was a #1 Amazon bestseller. Keynotes based on that book inspired audiences worldwide with its core message that, if you look at the facts, we are living in the most peaceful human era ever. The talks pointed the way to a better future for humankind.

Pinker’s other bestselling books include The Blank Slate: The Modern Denial of Human Nature (“Required reading.” – Los Angeles Times) and How The Mind Works (“A model of scientific writing: erudite, witty, and clear.” – New York Review of Books). Pinker’s acclaimed “language” series includes The Language Instinct: How the Mind Creates LanguageWords and RulesThe Stuff of Thought: Language as a Window into Human Nature, as well as The Sense of Style: The Thinking Person’s Guide to Writing in the 21st Century.

A native of Montreal, Steven Pinker is Johnstone Professor of Psychology at Harvard University. Previously, he taught at Stanford and at MIT. He is a fellow of the American Academy of Arts and Sciences and the American Association for the Advancement of Science. He has won a number of teaching prizes, and his research on visual cognition and the psychology of language has received numerous awards, including the Troland Award from the National Academy of Sciences.

Speech Topics

Politics & Society
When Everyone Knows That Everyone Knows . . .Common Knowledge and Its Effect on Our Lives

We think about each other’s thoughts all the time, experiencing it as an awareness that’s public or “out there.” We call it “common knowledge”—and it has a momentous impact on our social, political, and economic lives.

In this riveting talk, Steven Pinker takes us into what we understand about how everyone else thinks. He shows how common knowledge is necessary for social coordination: h...

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Psychology
RationalityHow to Inspire Thoughtfulness

In an era of profound and groundbreaking technological and scientific advancements, why is it that rational thought sometimes feels in short supply? How can a species that developed vaccines for COVID-19 in less than a year produce so much fake news, medical quackery, and conspiracy theorizing? Humans are not inherently irrational. After all, we discovered the laws of nature, lengthened and enr...

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Corporate Culture
Enlightenment NowInvoking the Age of Reason in the Boardroom

What does a book about 19th century philosophy have to do with 21st century corporate culture? Plenty! In this keynote—drawn from the book Bill Gates called the best he’d ever read—the lessons are clear. The values of The Enlightenment transformed an entire planet: creating wealth, inspiring creativity, advancing science, empowering individuals, and introducing Democracy to America, France, and...

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Psychology
Enlightenment NowThe Case for Reason, Science, Humanism, and Progress

If you read the news today, you might come to the conclusion that the human race is doomed, that democracy is on the decline, that authoritarianism and tribalism are on the rise. But is the world really falling apart? In this bold keynote, Steven Pinker urges us to step back from the gory headlines, which play to our psychological biases. Instead, follow the data. Pinker shows that life, health...

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Psychology
A History of Violence

Faced with the ceaseless stream of news about war, crime, and terrorism, one could easily think we live in the most violent age ever seen. Yet as New York Times bestselling author Steven Pinker shows in this startling and engaging new talk, just the opposite is true: violence has been diminishing for millennia and we may be living in the most peaceful time in our species’&nbs...

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Literature
The Sense of StyleThe Thinking Person's Guide to Writing in the 21st Century

Why is so much writing so bad, and how can we make it better? Do people write badly on purpose, to bamboozle their readers with highfalutin gobbledygook? Is the English language being corrupted by texting and social media? Should we bring back the lost art of diagramming sentences? Have dictionaries abandoned their responsibility to safeguard correct usage? Do the kids today even care about goo...

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