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The Intelligence Trap

The Intelligence Trap

Why Smart People Make Dumb Mistakes
by David Robson 2019 314 pages
4.02
2k+ ratings
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Key Takeaways

1. Intelligence alone is not enough: The paradox of smart people making stupid mistakes

"The intelligence trap is about why smart people act stupidly—and why in some cases they are even more prone to error than the average person."

The intelligence paradox. Contrary to popular belief, high IQ and academic success do not guarantee good decision-making or rational thinking. In fact, intelligent individuals can be more susceptible to certain cognitive biases and errors in judgment. This phenomenon, dubbed "the intelligence trap," occurs because:

  • Intelligent people often have a larger "bias blind spot," making them less aware of their own prejudices and thinking errors.
  • They are better able to rationalize and justify their beliefs, even when those beliefs are wrong.
  • Their expertise can lead to overconfidence and closed-mindedness.

Examples of the intelligence trap in action include:

  • Arthur Conan Doyle, creator of Sherlock Holmes, falling for spiritualism and fairy photographs
  • Highly educated individuals being more susceptible to certain conspiracy theories
  • Intelligent leaders making catastrophic decisions due to groupthink and confirmation bias

2. Dysrationalia: When high IQ fails to translate into rational thinking

"It is possible to have a very high SAT score that demonstrates good abstract thinking, for instance, while still performing badly on these new tests of rationality—a mismatch known as 'dysrationalia.'"

Rational thinking skills. Dysrationalia, a term coined by cognitive scientist Keith Stanovich, refers to the mismatch between intelligence and rationality. It explains why smart people can make irrational decisions and hold illogical beliefs. Key aspects of dysrationalia include:

  • Cognitive miserliness: The tendency to rely on quick, intuitive judgments rather than careful analysis.
  • Motivated reasoning: The unconscious tendency to process information in a way that confirms pre-existing beliefs.
  • Lack of metacognition: The failure to reflect on one's own thinking processes and recognize potential biases.

Research shows that measures of rationality, such as the Cognitive Reflection Test, are often better predictors of real-world decision-making than traditional IQ tests. This highlights the importance of cultivating rational thinking skills alongside academic intelligence.

3. The curse of expertise: How knowledge can blind us to new information

"A lot of the cornerstones, the building blocks that make the expert an expert and allow them to do their job efficiently and quickly, also entail vulnerabilities: you can't have one without the other."

Expert blindness. While expertise is generally valuable, it can sometimes lead to errors in judgment and decision-making. The "curse of expertise" manifests in several ways:

  • Cognitive entrenchment: Experts become so set in their ways of thinking that they struggle to adapt to new situations or consider alternative perspectives.
  • Overconfidence: Expertise can lead to an inflated sense of one's abilities and knowledge, making experts less likely to seek out or consider contradictory information.
  • Automatic processing: Experts often rely on rapid, intuitive judgments that can be influenced by irrelevant factors or biases.

Examples of the curse of expertise:

  • Forensic experts making erroneous fingerprint matches due to contextual bias
  • Experienced doctors misdiagnosing patients because they jump to conclusions based on limited information
  • Financial experts failing to predict or respond to economic crises due to entrenched thinking

4. Evidence-based wisdom: Cultivating intellectual humility and open-mindedness

"I have, with most of the Dissenters in England, some doubts as to [Jesus's] divinity, though it is a question I do not dogmatise upon, having never studied it, and think it needless to busy myself with it now, when I expect soon an opportunity of knowing the truth with less trouble."

Wisdom in practice. Evidence-based wisdom combines intellectual humility, open-mindedness, and a willingness to consider multiple perspectives. Key components of this approach include:

  • Intellectual humility: Recognizing the limits of one's knowledge and being open to new information.
  • Actively open-minded thinking: Deliberately seeking out alternative viewpoints and evidence that may challenge one's beliefs.
  • Perspective-taking: The ability to consider situations from multiple angles and understand others' points of view.

Strategies for cultivating evidence-based wisdom:

  • Practice "moral algebra": Benjamin Franklin's method of weighing pros and cons over time to make better decisions.
  • Use self-distancing techniques: Viewing problems from a third-person perspective to reduce emotional bias.
  • Engage in pre-mortems: Imagining potential failures before they occur to identify and address weaknesses in plans.

5. Emotional intelligence: The power of self-reflection and intuition in decision-making

"Feeling is believing."

The emotional compass. Emotions play a crucial role in decision-making, and developing emotional intelligence can lead to better judgments and outcomes. Key aspects of emotional intelligence include:

  • Interoception: The ability to perceive and interpret bodily sensations related to emotions.
  • Emotion differentiation: The capacity to identify and distinguish between different emotional states with precision.
  • Emotion regulation: The ability to manage and modulate emotional responses effectively.

Strategies for improving emotional intelligence:

  • Practice mindfulness meditation to enhance awareness of bodily sensations and emotions.
  • Develop a more nuanced emotional vocabulary to better differentiate between feelings.
  • Use emotion regulation techniques such as reappraisal and self-distancing to manage strong emotions.

Research shows that individuals with higher emotional intelligence tend to make better decisions in various domains, from financial trading to interpersonal relationships.

6. Critical thinking: Developing a "bullshit detection kit" for the modern world

"Our governments spend billions on trying to create knowledge economies, our firms brag about their superior intelligence, and individuals spend decades of their lives building up fine CVs. Yet all this collective intellect does not seem to be reflected in the many organizations we studied."

Combating misinformation. In an age of information overload and "fake news," developing critical thinking skills is essential. Key components of a "bullshit detection kit" include:

  • Cognitive reflection: The ability to override intuitive responses and engage in deeper analysis.
  • Scientific literacy: Understanding basic scientific concepts and methods.
  • Media literacy: The ability to evaluate the credibility of information sources.

Strategies for enhancing critical thinking:

  • Practice the "consider the opposite" technique: Deliberately seek out information that challenges your beliefs.
  • Learn about common logical fallacies and cognitive biases to better identify them in arguments.
  • Develop a healthy skepticism by asking questions like "Who benefits from this information?" and "What evidence supports this claim?"

Research shows that individuals with stronger critical thinking skills are less susceptible to misinformation and conspiracy theories.

7. The art of learning: Embracing struggle and confusion for deeper understanding

"The benefits of eating bitter."

Desirable difficulties. Contrary to popular belief, making learning easier does not always lead to better outcomes. Research shows that introducing "desirable difficulties" into the learning process can enhance long-term retention and understanding. Key principles include:

  • Spaced repetition: Spreading out learning sessions over time rather than cramming.
  • Interleaving: Mixing different topics or types of problems rather than focusing on one at a time.
  • Retrieval practice: Testing yourself on material rather than simply re-reading or reviewing.

Benefits of embracing struggle in learning:

  • Deeper processing of information leads to better long-term retention.
  • Improved ability to transfer knowledge to new situations.
  • Development of problem-solving skills and metacognitive awareness.

Examples of effective learning strategies:

  • Using pre-testing to activate prior knowledge and identify gaps in understanding.
  • Engaging in "productive failure" by attempting to solve problems before being taught the solution.
  • Seeking out challenging material that pushes the boundaries of current understanding.

8. Building smarter teams: Harnessing collective intelligence and avoiding groupthink

"Often it leads to a number of small mistakes being made, or the [company] focuses on the wrong problems and overlooks a problem where there should have been some sort of post mortem."

Team dynamics. Creating effective teams involves more than just assembling intelligent individuals. Key factors in building smarter teams include:

  • Collective intelligence: The ability of a group to perform well across a range of tasks, which is not strongly correlated with individual IQ.
  • Social sensitivity: The capacity to read and respond to others' emotions and social cues.
  • Equal participation: Ensuring that all team members have the opportunity to contribute.

Strategies for enhancing team performance:

  • Foster psychological safety to encourage open communication and idea-sharing.
  • Promote diversity in backgrounds, perspectives, and thinking styles.
  • Implement structured decision-making processes to counteract groupthink.

Research shows that teams with higher collective intelligence tend to outperform those with higher average individual intelligence, highlighting the importance of effective collaboration and communication.

9. Organizational wisdom: Creating cultures that foster rational thinking and innovation

"Far from being 'knowledge-intensive,' many of our most well-known chief organizations have become engines of stupidity."

Mindful organizations. Creating a culture of organizational wisdom involves implementing structures and practices that promote rational thinking, learning from mistakes, and innovation. Key elements include:

  • Psychological safety: Fostering an environment where employees feel comfortable taking risks and sharing ideas.
  • Intellectual humility: Encouraging leaders and employees to acknowledge the limits of their knowledge and seek out diverse perspectives.
  • Continuous learning: Implementing systems for ongoing skill development and knowledge sharing.

Strategies for building wiser organizations:

  • Implement "pre-mortems" to identify potential pitfalls in projects before they occur.
  • Create channels for bottom-up feedback and idea generation.
  • Reward intellectual curiosity and willingness to challenge assumptions.

Examples of organizational wisdom in action:

  • Google's practice of allowing employees to spend 20% of their time on personal projects, leading to innovations like Gmail and Google News.
  • Toyota's "stop-the-line" policy, which empowers any employee to halt production if they notice a quality issue, promoting a culture of continuous improvement.

Last updated:

Review Summary

4.02 out of 5
Average of 2k+ ratings from Goodreads and Amazon.

The Intelligence Trap explores why intelligent people make poor decisions. Readers found it insightful, with engaging examples and scientific backing. Some praised its accessibility and practical advice, while others felt it rehashed familiar concepts. The book discusses cognitive biases, intellectual humility, and evidence-based wisdom. It challenges traditional notions of intelligence and IQ tests. Many readers appreciated its lessons on critical thinking and avoiding common mental pitfalls. However, a few found it slow-paced or repetitive in parts.

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About the Author

David Robson is an accomplished science writer specializing in articles about human cognition, behavior, and physiology. His first book, The Intelligence Trap, examines why smart people make poor decisions. His second book, The Expectation Effect, explores how mindset influences various aspects of life. Robson's work delves into the complexities of the human mind and body, often focusing on extreme or unusual cases. As an award-winning author and editor, he is known for his in-depth, probing style of journalism. Robson maintains a website where readers can find more information about his work and publications.

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