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Perpetual: Reads | How We Decide

Our series of book recommendations to empower talent and fuel brands.

How We Decide

Why Perpetual recommends it

Jonah Lehrer’s How We Decide sits alongside Kahneman and Gladwell as part of the wave of books that brought decision science to a general audience, but Lehrer’s particular contribution is his focus on the interplay between emotion and reason rather than treating them as opposites. Drawing on neuroscience, he argues that good decisions are rarely purely rational or purely emotional — they’re an integration of both, and knowing which to lean on in a given situation is the real skill.

Lehrer is especially interesting on cases where purely rational, deliberate analysis actually produces worse decisions than trained intuition, and vice versa — high-stakes, novel situations where overthinking creates paralysis, versus routine decisions where emotion introduces bias that careful analysis would catch. The book is full of vivid case studies, from fighter pilots to professional poker players to NFL quarterbacks reading a play in real time.

For us, this is a useful reminder in coaching conversations that ‘trust your gut’ and ‘think it through carefully’ are both true advice, depending entirely on the context and the person’s level of expertise in that specific domain. Good decision-making is contextual, not a single formula applied everywhere.

Lehrer profiles a fighter pilot who, faced with a cockpit alarm that didn’t match any training scenario, ignored the manual and trusted a gut instinct that the alarm itself was faulty — a decision that saved the aircraft. He pairs this with poker players who lose fortunes precisely because they trust gut instinct in situations that actually call for cold probability, underscoring that the real skill is knowing which situation you’re in.

  • Good decisions integrate emotion and reason rather than suppressing one for the other
  • Expertise changes which mode of thinking should be trusted in a given decision
  • Overthinking can hurt performance in fast, high-stakes, familiar situations
  • There is no single ‘correct’ decision-making style — context determines the right approach

The practical question worth asking before any high-stakes call is simple: is this a novel, high-stakes situation that calls for care, or a familiar one where trained instinct is more reliable than another spreadsheet.

We give this book three out of five stars.

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