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The Intelligence Trap: Why Smart Minds Fall Short
Why do intelligent people make foolish mistakes? David Robson’s The Intelligence Trap explores this paradox: high mental ability—whether measured by IQ, expertise, or professional reputation—often coexists with poor judgment. Intelligence, Robson argues, is not the whole story. The book reveals how biases, overconfidence, cultural blind spots, and lack of emotional insight lead even geniuses astray, and how ordinary thinkers can learn the habits of genuine wisdom.
Robson begins with Lewis Terman’s “Termites,” children with near-genius IQs who demonstrated that raw brainpower alone doesn’t guarantee creative or moral success. From there, he explores the concept of dysrationalia—Keith Stanovich’s term for the failure of rationality among smart people—and illustrates it through stories like Arthur Conan Doyle’s belief in spiritualism. Intelligence helps reason faster, but it also helps invent more elaborate justifications for what you already believe. That’s the trap.
The Limits of IQ
IQ tests, derived from Alfred Binet and refined by Terman, measure a narrow slice of cognition—analytical skill and pattern recognition. These predict school success, but not wisdom, empathy, or judgment. The global rise in IQ scores, called the Flynn Effect, proves that abstract reasoning depends heavily on culture and schooling, not fixed genetic potential. People can train these skills while losing others (e.g., spatial navigation in GPS culture). In short, intelligence is adaptable but incomplete.
The Problem of Smart Errors
Smart errors stem from motivated reasoning and overconfidence. Dan Kahan’s work shows that politically sophisticated individuals are more likely to selectively interpret data in ways that confirm identity-based beliefs. Robson catalogs Nobel laureates who succumbed to “earned dogmatism”—mistakes of prestige, where success in one domain breeds arrogance in others. Linus Pauling’s vitamin obsession and Kary Mullis’s denialism are high-IQ cautionary tales.
Emotion, Expertise, and Collective Thinking
Emotions, rather than enemies of reason, turn out to be its invisible compass. Antonio Damasio’s somatic-marker hypothesis and Lisa Feldman Barrett’s research show that bodily signals and nuanced emotion labeling protect against impulsive error. In organizations, expertise can turn blind—like the FBI’s misidentification of Brandon Mayfield—when cognitive patterns override fresh perception. Robson connects these examples to a wider principle: wisdom depends on emotional awareness and process design, not intellect alone.
Cultivating Real Wisdom
The second half of the book moves from diagnosis to prescription: how to think wiser. Igor Grossmann’s research defines measurable wise reasoning—humility, perspective taking, and tolerance for uncertainty. Philip Tetlock’s superforecasters, Benjamin Franklin’s rational routines, and Carol Dweck’s growth mindset all demonstrate how discipline, curiosity, and self-reflection make intelligence work properly. The book closes with collective intelligence: Anita Woolley’s studies show that social sensitivity and humility matter more than having stars on a team.
Central Message
Robson’s central claim is that being smart is no defense against error. True intelligence is not speed or knowledge—it’s the integration of rational analysis, emotional insight, curiosity, humility, and procedural wisdom that prevents clever minds from becoming foolish ones.
Across its chapters, the book teaches you how to turn intelligence from a liability into an asset: pause your reasoning, sense your emotions, welcome opposing views, embrace productive difficulty, and prioritize collective wisdom over individual brilliance. In the end, this is not only a book about thinking better—it is a manual for living more wisely.