Mental Modelsintermediate
How to Become the Master
Seneca's strategy of using wealth without harm, applying an upside-downside asymmetry to become antifragile.
economics · business↗
THE REFERENCE LIBRARY
Find a different
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A growing collection of ideas for understanding the world — and your own thinking.
Heuristicsintermediate
How to Behave When You Meet a Blue
In Erikson’s model, a Blue may express little emotion while focusing closely on the issue at hand. He recommends giving specific examples when blunt criticism hurts others, while distinguishing personal judgments from objective facts.
business · education↗
Mental Modelsbeginner
How to Behave When You Meet a Green
Erikson introduces the need for strategies to motivate people he classifies as Greens. The excerpt supplies neither the earlier interaction advice nor the strategies it announces.
education · psychology↗
Heuristicsintermediate
How to Behave When You Meet a Red
Advice on interacting with people who have a 'Red' personality type to achieve desired outcomes without fully adapting to their style.
business · psychology↗
Mental Modelsintermediate
How to Behave When You Meet a Yellow
Erikson’s 4 Colors model describes Yellow as enthusiastic and sociable. The practical issue in this excerpt is capturing ideas and agreeing next steps when an enjoyable discussion produces little recorded work.
business · education↗
Scientific Principlesintermediate
How to Cause Catastrophes
Taleb warns that statistical results can create false confidence when models understate extreme-event risks. His criticism centers on applying Gaussian assumptions outside the conditions where they are useful.
science · statistics↗
Mental Modelsintermediate
How to Create Your Own Mental Model
Learning a method that colleagues seldom use can give you another way to approach a difficult problem. Feynman’s account of differentiating under the integral sign illustrates the value of adding tools to your repertoire and recognizing when they fit.
education · science↗
Mental Modelsintermediate
How to Develop Better Mental Models
Developing better mental models involves exposing yourself to a variety of ideas, connecting them to existing knowledge, and cultivating metacognition to think about your thinking. The text illustrates this with an example of Johnny's alcohol intolerance, showing how different mental models can lead to different interpretations.
education · science↗
Scientific Principlesintermediate
How to Discipline Intuition
Bayesian reasoning provides rules for combining prior beliefs (base rates) with evidence diagnosticity to discipline intuition. It emphasizes that base rates matter and intuitive impressions of evidence are often exaggerated.
science · psychology↗
Mental Modelsintermediate
How to Eat Yourself
Taleb uses food deprivation to illustrate hormesis: a stressor’s effects can depend on its dose and duration. He connects fasting with autophagy and longevity research, but the animal findings described do not establish a fasting regimen or a cancer treatment for humans.
science · health↗
Decision Frameworksintermediate
How to Explain Anything to Anyone
IRADE—Introduce, Relate, Apply, Demonstrate, Examine—organizes an explanation around context, examples, practice, demonstrations, and checks of understanding. Hollins presents it alongside Feynman’s emphasis on clear explanations and learning through teaching.
science · education↗
Mental Modelsintermediate
How to Explain Stotting
Dennett uses stotting in gazelles to illustrate an evolutionary explanation: an energetic leap can signal fitness and discourage pursuit. His point is that explaining the signal’s function requires more than describing its molecular mechanisms, and neither animal needs to understand that function consciously.
philosophy · science↗
Heuristicsintermediate
How to Give Feedback to a Blue
Erikson advises checking facts and gathering concrete examples before giving corrective feedback to someone he describes as Blue. His portrait stresses attention to detail and a readiness to challenge unsupported criticism.
business · psychology↗
Mental Modelsintermediate
How to Give Feedback to a Green—but Think Twice Before You Do
Erikson describes people he calls Greens as sensitive to criticism and sometimes self-critical without acting on it. The excerpt introduces feedback advice but does not include the promised methods.
business · education↗
Heuristicsintermediate
How to Give Feedback to a Red—If You Dare
Erikson portrays Reds as likely to react strongly to criticism and urges the person giving feedback to prepare for that response.
business · psychology↗
Heuristicsintermediate
How to Give Feedback to a Yellow—If You Have the Patience
Giving feedback to 'Yellows' takes patience and tact: these personality types embrace change when it is their own idea but resist external criticism.
business · education↗
Mental Modelsadvanced
How to Legally Own Another Person
Taleb argues that employment buys dependability partly by giving workers something costly to lose: income, status, professional relationships, or an accustomed lifestyle. His comparisons with domestication and slavery emphasize how those dependencies can restrict autonomy. The chapter asks how much freedom people surrender for security, and how secure that bargain really is.
sociology · philosophy↗
Mental Modelsintermediate
How to Look for Bird Poop
The tendency to engage in extensive long-term planning despite unpredictable events (Black Swans) that render such plans obsolete, while failing to learn from past failures.
economics · psychology↗
Heuristicsintermediate
How to Make Your Own Analogies
Creating an effective analogy starts with identifying the key property you want to convey and mapping it onto something concrete. A step-by-step process helps you use analogies to communicate and learn.
science · education↗
Mental Modelsbeginner
How to Make Your Own Analogies
Create an analogy by choosing the relationship you want to explain, mapping it to something familiar, and testing whether the comparison helps your audience. Feynman’s light-wave example illustrates the process.
science · communication↗
Cognitive Biasesintermediate
How to Medicate Half the Population
Taleb uses a blood-pressure anecdote and a simplified thought experiment to criticize intervention based on noisy measurements. His broader point is to distinguish the size of an effect from statistical significance and to consider the costs of acting on uncertain information.
medicine · economics↗
Heuristicsbeginner
How to Teach Like Feynman
Teaching a topic requires clear communication and can reveal gaps in the teacher’s and learner’s understanding.
education · philosophy↗
Mental Modelsintermediate
How to Transform Failure into Triumph
Failure is a necessary step toward innovation and success. Examples from rocket science show that intelligent failures—when learned from—are investments in progress, not losses. Focus on inputs over outputs, create psychological safety, and advertise failures to encourage learning.
education · technology↗
Heuristicsintermediate
How to Use Your Powers of Thought to Get What You Want
This discussion combines speculative claims about brain waves with philosophical ideas about different modes of attention and practical memory techniques. Its useful mnemonic advice involves making associations and testing recall; the passage does not establish its promises about reprogramming the subconscious.
neuroscience · self-help↗
Mental Modelsintermediate
How to Win Debates and Influence People
Winning debates isn't about having more facts or data; it's about adopting a collaborative, humble, and curious approach that invites others to rethink their positions. The story of champion debater Harish Natarajan vs. prodigy Debra Jo Prectet illustrates how focusing on shared values and acknowledging trade-offs can shift opinions more effectively than overwhelming with evidence.
politics · business↗
Cognitive Biasesintermediate
How to Write a Persuasive Message
Clear type, plain language, rhyme, and familiar-sounding names can affect how credible a message feels. Kahneman describes studies in which this ease of processing influenced judgments even though it did not establish whether a claim was true.
communication · business↗
Mental Modelsintermediate
How We Make Ourselves More Accurate by Limiting Our Scope
People often express emotions through absolute statements (e.g., 'always', 'never', 'all') that are emotionally charged but logically inaccurate. More precise language with a limited scope improves accuracy and makes communication more productive.
logic · communication↗
Heuristicsintermediate
How-Do-I-Feel-About-It? Heuristic
The 'How-do-I-feel-about-it?' heuristic describes how people rely on their current feelings as a source of information when making judgments. This can lead to biased decisions when feelings stem from unrelated sources, but it can also be adaptive when feelings accurately reflect reactions to the target.
neuroscience · decision-making↗
Cognitive Biasesintermediate
Hubris
Exaggerated pride or self-confidence in decision-makers, particularly CEOs, causing them to overestimate their ability to add value and overpay for acquisitions, as identified by researchers Hayward and Hambrick.
business · psychology↗
Cognitive Biasesintermediate
Human Beings Tend to Avoid Analytic Structure
Jones interprets some rapid refusals of structured analysis as intuitive reactions rather than considered evaluations. His account raises the question of whether a method is being rejected before its costs and benefits are examined.
business · decision-making↗
Cognitive Biasesintermediate
Human Error and Human Factors
Human error is inevitable even for the most experienced individuals; effective root cause analysis should focus on designing systems that reduce the likelihood of errors and mitigate their impact.
business · psychology↗
Mental Modelsintermediate
Human Factors
Human Factors is a discipline that applies knowledge of human abilities, characteristics, and limitations to the design of equipment, environments, and jobs, especially in high-stakes settings like aviation. It emphasises that organisations must proactively accommodate human variability and error rather than expecting perfect performance.
sociology · technology↗
Mental Modelsintermediate
Human Factors and Just Culture
Human factors thinking emphasizes that people are not root causes of incidents; their mistakes often stem from systemic issues. A 'just culture' balances accountability with understanding human variability to avoid scapegoating.
safety · organizational_behavior↗
Mental Modelsintermediate
Human Factors in Aviation
The aviation industry adopted Crew Resource Management (CRM) to prevent errors through psychological safety, clear communication, and awareness of cognitive biases, even among experienced crew. This mindset shift applies broadly to any high-stakes environment where team coordination and human factors are critical.
aviation · psychology↗
Mental Modelsbeginner
Human Nature, Happiness, and Lumpy Rewards
Taleb argues that the frequency of pleasant experiences can matter more to happiness than the size of a single reward. He contrasts steady small rewards with a windfall, and discusses how the sequence of gains and losses affects their emotional impact.
economics · business↗
Mental Modelsintermediate
Human Variability
Human variability recognizes that people's behavior naturally differs, enabling creativity, innovation, and adaptation. It suggests that deviations from standard procedures are not necessarily errors and can be crucial for safety and success.
technology · psychology↗
Mental Modelsintermediate
Humour and Insight
De Bono describes humour and insight as sudden rearrangements of familiar information. In his account, humour briefly shifts an interpretation, while insight leaves a lasting new understanding.
education · philosophy↗
Mental Modelsintermediate
Hungry Donkeys (Buridan's Donkey)
Adding randomness to a system stuck in an impasse can unlock it and improve its functioning, as illustrated by Buridan's Donkey, stochastic resonance, annealing, and stabilization of chaotic systems.
engineering · physics↗
Cognitive Biasesintermediate
Hyperbolic discounting
A cognitive bias where people show a propensity to choose smaller, immediate rewards over larger, delayed ones, often leading to time-inconsistent preferences.
neuroscience · decision science↗
Logical Fallaciesbeginner
Hypnotic Bait and Switch
Stating several uncontroversially true statements in succession, followed by a claim that the arguer wants the audience to accept as true. This is a propaganda technique and a logical fallacy where the audience lends more credibility to the last claim because it was preceded by true statements.
politics · business↗
Mental Modelsintermediate
Hypothesis
A hypothesis is a proposed explanation or claim to test. Jones’s method compares competing hypotheses against key evidence, emphasizing contradictions and evidence that distinguishes alternatives rather than simply counting supporting observations.
science · statistics↗
Logical Fallaciesintermediate
Hypothesis Contrary to Fact
The fallacy of asserting a speculative claim about what would have happened under different circumstances without evidence, treating counterfactuals as fact.
logic · philosophy↗
Cognitive Biasesintermediate
Hypothesis Generation
People tend to overestimate the probability of specified hypotheses because they fail to consider alternative hypotheses (the 'residual'). Explicitly generating or being provided with alternative hypotheses can correct this bias by unpacking the residual, leading to more accurate probability judgments.
decision science · statistics↗
Decision Frameworksintermediate
Hypothesis Testing
Test competing explanations by asking what evidence would count against each one, especially the explanation you favor. This helps reveal weaknesses that a search for confirming evidence can miss. Jones uses Disney’s abandoned Virginia theme park to illustrate the cost of overlooking opposition.
management · business↗
Scientific Principlesintermediate
Hypothesis Testing
This approach compares alternative hypotheses against consistent and inconsistent evidence. It helps identify weaknesses in explanations and rank plausible scenarios, including when the evidence does not settle the question.
science · statistics↗
Decision Frameworksintermediate
Hypothesis Testing (Jane Bolding Case)
A historical case exercise uses competing hypotheses to examine an unusual concentration of cardiac arrests around a nurse’s shifts. The nurse was acquitted. The task is to assess the supplied evidence and alternative explanations without confusing a statistical association with proof of murder.
medicine · law↗
Decision Frameworksintermediate
Hypothesis Testing Technique (Matrix Analysis)
A hypothesis matrix compares competing explanations with the available evidence. It highlights contradictions, identifies gaps, and helps investigators decide what information would distinguish the remaining possibilities.
business · education↗
Mental Modelsintermediate
Hypothetical Syllogism
A logical argument form consisting of three conditional statements: if A then B, if B then C, therefore if A then C. Also known as the chain argument, it provides a valid structure but does not guarantee true content.
logic · education↗
Cognitive Biasesintermediate
I Am a Risk Taker
Humans have a bias towards overoptimism and uninformed risk-taking, often glorified as a positive trait, but actually stemming from ignorance of probabilities and survivorship bias. This bias can lead to harmful decisions, especially in uncertain environments.
evolution · science↗
Mental Modelsintermediate
I Am Dumb Without Skin in the Game
Taleb argues that having something at stake can make tedious work absorbing and give practical purpose to learning. His example is studying probability to understand the financial risks he was taking.
education · philosophy↗
Mental Modelsintermediate
I Am My Position
People often confuse their job title or role with their identity, leading to a narrow focus on individual tasks rather than the larger system. This cognitive bias creates silos, reduces accountability for outcomes, and hinders adaptability.
management · business↗
Heuristicsintermediate
I COME IN PEACE
When discussing extraordinary claims, be friendly but firm. Use questions to challenge beliefs without being rude, keeping the conversation honest and grounded.
philosophy · psychology↗
Cognitive Biasesbeginner
I Don’t Want to Be a Turkey
This concept emphasizes practical skepticism in decision-making to avoid being blindsided by rare, high-impact events (Black Swans). It advocates for aggressive risk-taking while avoiding blindfolded risks, contrasting with extreme philosophical skepticism that leads to withdrawal.
economics · philosophy↗
Mental Modelsintermediate
I Have No Conclusion
The author argues that in most professions, it is extremely difficult to distinguish skill from luck, except in specialized roles like market makers who have a probabilistic edge through high-volume, low-margin transactions. He recommends skepticism and reserving judgment about success or failure without additional information.
philosophy · psychology↗
Cognitive Biasesbeginner
I Know I Should Change This Immediately, but I’ll Just Think About It for a While.
This cognitive bias describes people (referred to as Greens) who strongly resist change, preferring familiar routines and fearing unknown outcomes. They often rationalize inaction with thoughts like 'I know what I have but not what I’ll get' and 'It was better before,' leading to irrational persistence in habits even when change is beneficial.
psychology · sociology↗
Heuristicsintermediate
I Want to Live Forever
Taleb objects to making personal longevity the overriding goal of life. He argues that individuals contribute to a larger, regenerating population and that children, books, and other lasting contributions offer a more worthwhile legacy.
ethics · economics↗
Cognitive Biasesintermediate
I Was “Almost” Right
Experts often attribute successes to skill and failures to external factors, leading to overconfidence and poor prediction accuracy. This self-serving bias, studied by Tetlock, is driven by belief defense and self-esteem protection.
politics · business↗
Mental Modelsintermediate
I'm Not a Me-Too Republican
Julia Galef uses Barry Goldwater’s willingness to challenge fellow Republicans and examine accusations against a Democrat to illustrate holding a political identity lightly. Group allegiance need not determine how someone evaluates a particular claim.
sociology · politics↗
Cognitive Biasesadvanced
Iatrogenics (Not Using the Wrong Map)
Taleb uses iatrogenics to describe harm caused by an intervention meant to help. A defective forecast can create false confidence or anchor a decision on a misleading number, making it worse than the decision it was meant to improve.
finance · economics↗
Mental Modelsintermediate
Iatrogenics and the Nihilism Label
Taleb uses iatrogenics to discuss harm caused by attempts to help. He argues that dismissing caution as nihilism can obscure the limits of knowledge and the costs of intervention, and extends the argument from medicine to regulation.
science · economics↗