The Elephant in the Brain: Hidden Motives in Everyday Life by Kevin Simler and Robin Hanson
The Elephant in the Brain: Hidden Motives in Everyday Life by Kevin Simler and Robin Hanson

Psychology · 2018

The Elephant in the Brain: Hidden Motives in Everyday Life review

by Kevin Simler and Robin Hanson

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The verdict

Kevin Simler and Robin Hanson argue that human behavior is much more self-interested and much less high-minded than the explanations people give for it.

Best for curious readers who like research-grounded arguments. Reading time: 5h 20m.

The Elephant in the Brain: Hidden Motives in Everyday Life by Kevin Simler and Robin Hanson
The Elephant in the Brain: Hidden Motives in Everyday Life by Kevin Simler and Robin Hanson

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What it argues

Kevin Simler and Robin Hanson argue that human behavior is much more self-interested and much less high-minded than the explanations people give for it. The title refers to the elephant in the room: the selfish, status-seeking, signaling motivations that drive most of what we do, which we collectively pretend not to notice because acknowledging them would be socially costly and individually uncomfortable.

The book makes a two-part argument. First, self-deception is adaptive. We evolved to misrepresent our own motives to ourselves and others because we are more convincing advocates for our own interests when we genuinely believe what we are saying. A person who sincerely believes they are helping a charity for purely altruistic reasons is a more effective fundraiser than one who knows they are doing it for social credit. The self-deception runs all the way down.

What it gets right

  1. 1.

    Self-deception is adaptive, not merely a failure. We evolved to misrepresent our own motives to ourselves because sincere belief makes us more persuasive advocates for our own interests.

  2. 2.

    Most social behavior involves signaling — demonstrating qualities like intelligence, wealth, virtue, or commitment to attract mates, allies, and status. This signal function often explains behavior better than the surface rationale.

  3. 3.

    The brain maintains hidden motives that serve self-interest but that we are not aware of and would deny if confronted. The book describes these as the elephant that the conscious rider cannot see.

What it covers

Who wrote it

Kevin Simler is a software engineer and writer with an interest in evolutionary psychology and the mechanisms underlying social behavior. He has written widely on his blog Melting Asphalt on topics including consciousness, signaling, and human motivation. Robin Hanson is Associate Professor of Economics at George Mason University and a research associate at the Future of Humanity Institute at Oxford. He is known for applying evolutionary and economic analysis to unconventional subjects, and has written extensively on prediction markets, future technology, and the gap between stated and actual human preferences.

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