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The Enigma of Reason book club questions

Here are 12 book club questions for The Enigma of Reason by Hugo Mercier and Dan Sperber, ordered to open easily and end somewhere worth arguing about. Copy them, print them, or bring them up one at a time.

The Enigma of Reason
The Enigma of Reason

The standard account of human reasoning treats it as a tool for individual problem-solving that happens to malfunction under certain conditions.

Hugo Mercier and Dan Sperber · 2017 · 6h 15m

Full summary and key takeaways →

The 12 questions

  1. 1.

    If reason evolved to argue rather than to find truth, what does that suggest about how you should evaluate your own strongest convictions?

  2. 2.

    Mercier and Sperber argue homogeneous groups amplify rather than correct errors. Can you identify a group you're part of where this is happening?

  3. 3.

    Think of a time you changed your mind after a genuine argument with someone. What made the argument effective? Does the book's framework explain it?

  4. 4.

    The book distinguishes intuitions from reasoning. Which do you trust more? In which domains does your intuition consistently outperform your reasoned analysis?

  5. 5.

    If myside bias is a feature, not a bug, how do you practically compensate for it in decisions that matter?

  6. 6.

    Mercier and Sperber suggest collective reasoning with diverse priors can outperform any individual. Have you experienced a group reaching a better conclusion than any member started with?

  7. 7.

    Epistemic vigilance — calibrated skepticism toward others' claims — is described as a separate faculty. Do you think yours is well-calibrated? Where might it be over- or under-active?

  8. 8.

    The argumentative theory implies that you should be more critical of your own arguments than your opponents' arguments. Is this actually achievable in practice?

  9. 9.

    This book is dense and academic. How does the form of the argument — its exhaustiveness, its engagement with objections — itself demonstrate or illustrate the book's thesis about reasoning?

  10. 10.

    If the book is right, what implications does it have for how schools should teach critical thinking? For how organizations should structure decisions?

  11. 11.

    The book challenges the view that more information and better logic will fix political polarization. If reasoning is social and motivated, what would actually change minds at scale?

  12. 12.

    Do you think the argumentative theory of reasoning is itself an example of the biases Mercier and Sperber describe — a theory that advocates for a position rather than merely explaining evidence?

How to run the discussion

  • Pick six to eight, not all of them. An hour of real discussion covers fewer questions than anyone expects, and racing the list is what makes a book club feel like homework.
  • Open with what people noticed, not what they concluded. Asking for a verdict first hardens opinions before anyone has heard each other.
  • Let the disagreement run. The questions below that split a room are the ones worth the time; the ones everyone answers the same way can be skipped.
  • Ask the quiet person a specific question. A direct, narrow question is far easier to answer than an open invitation to contribute.

Themes worth steering toward

If the conversation stalls, these are the threads that usually restart it.

Common questions

What are good book club questions for The Enigma of Reason?

Here are 12 book club questions for The Enigma of Reason by Hugo Mercier and Dan Sperber, ordered to open easily and end somewhere worth arguing about. The strongest openers ask what each reader noticed rather than what they concluded, and the discussion usually turns on reasoning, evolutionary psychology, cognitive bias.

How long should a book club discussion of The Enigma of Reason last?

Most groups run 60 to 90 minutes of actual discussion. That is roughly six to eight questions, not all of them, so pick the ones that suit your group rather than working down the list in order.

What are the main themes in The Enigma of Reason?

Reasoning, Evolutionary psychology, Cognitive bias, Argumentation, Social cognition. Those are the threads most likely to divide a room, which makes them the useful places to steer a discussion that has gone quiet.

Picking the next one? See books like The Enigma of Reason or questions for other book club picks.

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