Editors Reads Verdict
Grant's most psychologically rich book argues convincingly that the ability to change your mind — and to help others change theirs — is the defining competency of our polarized, fast-changing era, backed by compelling research and memorable stories.
What We Loved
- The scientist vs. preacher/prosecutor/politician framework is immediately useful
- Research is unusually well-sourced and precisely explained
- The chapters on persuasion and debate offer genuinely practical strategies
- Grant's prose is clearer and more direct than most academic popularizers
Minor Drawbacks
- Some readers find Grant's narrative voice overly polished
- A few research examples are drawn from unusual contexts that may not generalize
- The book sometimes argues against positions stronger than those most people actually hold
Key Takeaways
- → Scientists update their views when evidence changes — the rest of us should too
- → Being wrong is not a failure; refusing to update is the failure
- → The most persuasive conversationalists ask questions rather than make arguments
- → Group think is most dangerous when the group is smart and successful
- → Psychological safety enables teams to surface doubts before they become disasters
| Author | Adam Grant |
|---|---|
| Publisher | Viking |
| Pages | 307 |
| Published | February 2, 2021 |
| Language | English |
| Genre | Psychology, Business, Self-Help |
| Difficulty | Intermediate |
| Best For | Leaders, professionals, and anyone interested in how intellectual humility and rethinking can improve decisions, relationships, and organizational culture. |
The Scientist Mindset
Adam Grant opens Think Again with the story of the Mann Gulch wildfire, where thirteen smokejumpers died in part because their leader couldn’t let go of a plan that circumstances had rendered lethal. The story establishes the book’s core question: what stops intelligent, experienced people from updating their thinking when evidence demands it?
Grant’s answer involves four mental modes: the preacher (defending your beliefs), the prosecutor (attacking others’ positions), the politician (seeking approval), and the scientist (forming hypotheses, testing them, and revising accordingly). The first three are natural and common. The fourth is rare and essential. Think Again is a manual for cultivating the scientific mindset in everyday thinking.
The Research Base
Grant’s skill as an academic communicator is on full display here. The research he draws on — from negotiation science, organizational psychology, and social science — is both robust and precisely explained. He is careful about what the studies actually demonstrate versus what they might suggest, which distinguishes him from popularizers who treat effect sizes as certainties.
The chapters on persuasion are especially strong. Grant synthesizes research on what actually changes minds — and it’s not more evidence, more forceful argument, or more eloquent presentation. It’s asking questions that prompt people to interrogate their own reasoning, a technique he calls “motivational interviewing” applied to belief change.
Rethinking in Groups
The second half of Think Again moves from individual to collective rethinking, and here Grant addresses organizational culture with considerable sophistication. The conditions that produce groupthink — psychological safety absent, dissent discouraged, success fostering overconfidence — are well-documented. What’s less obvious, and what Grant addresses, is how to build cultures where updating is routine rather than humiliating.
The chapter on how NASA, for the second time, missed the signals that preceded a shuttle disaster — because the organization had learned to normalize anomalies — is the book’s most chilling moment.
What Grant Doesn’t Quite Resolve
Think Again argues for intellectual humility without entirely grappling with the question of which beliefs are worth holding with more confidence. Being willing to update matters more when you have good epistemic grounds in the first place. The book occasionally implies that all positions held with conviction are equally suspect, which is not quite what it means to have a scientific mindset.
Our rating: 4.3/5 — Grant’s most incisive book makes a compelling, research-grounded case for intellectual humility as the crucial competency of a polarized era.
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