ONE OF SEVEN WAYS OF SEEING
Recognize the shortcuts that quietly shape your judgment.
Duke draws on research suggesting that people can accept information before checking it, especially under cognitive load. Familiar claims may then persist even after correction. Her practical question is whether you have evidence for a belief or simply remember hearing it.
A logical demonstration showing that if you accept that observing a white swan confirms 'all swans are white', you must also accept that observing a red Mini Cooper confirms 'no black swans exist', thereby exposing the absurdity of naive confirmation.
Herding is a cognitive bias where individuals mimic the actions of a larger group, often irrationally, especially during times of uncertainty.
Taleb describes studies in which security analysts showed excessive confidence and forecasts performed little better than simple extrapolation. In one dataset, forecasts clustered more tightly together than their errors warranted, suggesting herding.
Heuristics are mental shortcuts that simplify judgments. Kahneman and Tversky studied how shortcuts such as resemblance and ease of recall can produce systematic errors, including neglecting base rates or mistaking memorable events for common ones.
Hindsight bias is the tendency, after an event has occurred, to see it as having been predictable or inevitable, ignoring the probabilistic nature of the future. This cognitive distortion leads us to 'lop off' other possible outcomes, making past decisions seem more obvious than they were at the time.
Hindsight bias is the tendency to see past events as being more predictable than they actually were, distorting our perception of history by selectively remembering information that matches outcomes.
Hindsight bias makes past events seem more predictable than they seemed beforehand. It can encourage outcome bias: judging a decision by how it turned out while overlooking the information and uncertainty the decision maker faced.
Hindsight bias makes past outcomes seem more predictable than they were. Generating alternatives can fail to reduce that bias when the task feels difficult. The study discussed here also found an opposite-direction memory bias when participants discounted that difficulty.
The historian’s fallacy judges a past decision as though the decision-maker had information learned only later. Assess the choice using what was known, or reasonably knowable, at the time.
History is opaque; we only see outcomes, not the underlying process. The human mind suffers from three cognitive biases: illusion of understanding, retrospective distortion, and overvaluation of factual information (Platonification).
When given the opportunity, most people cheat just a little, but their dishonesty is not primarily driven by the risk of being caught. However, moral reminders—such as recalling the Ten Commandments or signing an honor code—can eliminate cheating entirely by making honesty salient at the moment of temptation.
A short run of successes can make continued success feel more likely than the evidence warrants. This is a fallacy when the events are independent. In basketball and other changing settings, the question is whether performance really varies and whether a recent streak helps predict the next outcome.
The hot-hand fallacy infers a higher chance of future success from a recent streak without adequate evidence of dependence. The supplied basketball passage describes a controlled study designed to investigate streaks and players’ predictions; it does not include results.
The hot hand fallacy is inferring that success itself raises the chance of further success when the outcomes do not support that inference. The historical basketball analysis here tested whether made and missed shots clustered more than expected under independence.
In the basketball records discussed here, the authors found little evidence that successful shots predicted further success. They also considered whether changes in shot selection or defensive pressure could conceal such a relationship.
People systematically underestimate how their preferences and behavior change when they are in an emotionally aroused ('hot') state compared to a calm ('cold') state, leading to poor predictions and risky decisions.
The hot-hand fallacy is inferring a higher chance of success from a recent streak without adequate evidence. This passage discusses historical basketball data in which shooting percentages were lower after hits than after misses; the result concerns that analysis, rather than proving that performance can never change.
People often adopt beliefs as part of their social identity, making them resistant to contradictory evidence. This cognitive bias leads to defending beliefs not on their merits but because they are intertwined with one's sense of self.
Publishing deadlines can encourage creators to reuse familiar characters and plots. The comic-book examples show how accessible ideas, recognizable stories and production demands can reinforce one another; reuse alone does not establish a judgment bias.
Skepticism can depend on the domain: someone trained to question assumptions in one field may accept conventional advice in another without similar scrutiny. Taleb illustrates this with philosophers and their pension investments.
This bias involves scaling deaths or impacts from small populations to larger ones (like the US) using proportional equivalency, but this reasoning often breaks down because different scaling methods yield different results and context is lost.
Galef uses Spock’s confident predictions to discuss calibration. Calling something impossible is a stronger claim than assigning it a small chance; one success can contradict impossibility without disproving a low nonzero probability.
Generic warnings and lectures can leave a vaccine-hesitant parent feeling attacked. Grant introduces Marie-Hélène’s experience and a doctor who starts by interviewing parents about their concerns. The excerpt sets up this approach but ends before their conversation.
A model can produce a precise number even when uncertainty in its assumptions makes that number uninformative. Demanding a single forecast can conceal how widely plausible outcomes vary.
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.
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.
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.
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.
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.
A cognitive bias where people show a propensity to choose smaller, immediate rewards over larger, delayed ones, often leading to time-inconsistent preferences.
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.
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.
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.
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.
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.
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.
The availability of counterfactual alternatives is influenced by distance from an ideal: improvements (moving toward an ideal) are more readily imagined than deteriorations, making them more salient in mental simulations.
A cognitive bias where individuals are more emotionally affected by the plight of a single identifiable victim than by a larger anonymous group facing the same or greater problems, leading to disproportionate aid and attention.
Identity foreclosure is prematurely committing to a life plan—such as a career, relationship, or educational path—without adequately exploring alternatives, which can hinder personal growth and lead to regret as people evolve.
Ideological bias is the tendency for one's political or ideological beliefs to distort objective reasoning and judgment, even among highly intelligent individuals, leading to rationalization and denial of evidence that threatens one's worldview.
This study tests whether people favor themselves partly by choosing their own criteria for a trait. It compares self-ratings made with personal criteria, another participant’s criteria, and no instruction about criteria; the excerpt describes predictions rather than results.
Erikson describes the difficulty of acting without complete information through his Blue personality profile. His advice is to weigh the risk and the cost of delay rather than wait indefinitely for certainty.
Erikson’s Blue pattern favors rules, familiar methods, and careful preparation. His furniture-assembly anecdote illustrates both the value of following instructions and the difficulty of adapting when a trusted plan does not fit reality.
Munger recalls declining an additional investment because it would have required selling other holdings or borrowing. He later judged that reluctance a costly mistake. The example concerns his retrospective assessment, not a risk-free opportunity known in advance.
Randomness can make wealth or success look like skill, distorting social rank and encouraging envy.
The illusion of asymmetric insight is the cognitive bias where individuals believe they know others better than others know them, and even better than others know themselves. This bias extends to groups, where in-groups assume they understand out-groups better.
The illusion of control is overestimating how much one’s actions influence an outcome. Choice, competition, and familiarity can encourage it even when chance or external events determine much of the result.
The illusion of knowledge is a cognitive bias where individuals overestimate the depth and accuracy of their understanding, often leading to overconfidence in decisions and judgments.
Kahneman argues that the demanding analytical work of stock picking can create confidence without demonstrating an ability to outperform the market. Professional culture can reinforce that confidence even when a track record offers little support.
People can overestimate how clearly others understand their intentions because they already know what they mean. A message that seems obvious to its speaker may remain ambiguous to a listener.
The illusion of truth effect is a cognitive bias where repeated statements are more likely to be believed as true, regardless of evidence. It explains why advertisements and propaganda rely on repetition to influence judgment.
The illusion of validity occurs when a convincing impression produces more confidence than the evidence warrants. People can remain confident in particular predictions even while recognizing that the method or information behind them has a poor overall record.
The Illusions of Truth bias describes how repeated exposure to a statement or phrase increases its perceived truthfulness, due to cognitive ease and System 1's reliance on familiarity, making it difficult to distinguish familiarity from truth.
Illusory correlation occurs when we perceive a relationship that the evidence does not support, or overestimate its strength. Memorable examples and prior expectations can draw attention away from cases that would challenge the pattern. Recording observations and comparing the relevant groups helps distinguish an impression from a measured association.
The illusory transparency of intention is a cognitive bias where people overestimate how clearly their intentions are communicated to others, assuming that their own knowledge and intentions are obvious even when the communication is ambiguous.
The illusory transparency of meaning is a cognitive bias where individuals, once they know the meaning of an ambiguous expression such as an idiom, overestimate how transparent that meaning is to others, assuming that uninformed listeners will interpret it similarly.
Immune neglect occurs when people forecast distress without allowing for the ways they may cope with a setback. They may therefore expect negative feelings to last longer than they do. The job-interview study illustrates how people can overlook an opportunity to explain away a rejection.
Impatience is the tendency to weigh the present more heavily than the future, preferring immediate rewards over delayed but potentially larger rewards, often leading to suboptimal long-term outcomes.
Mental correction ranges from automatic, nonconscious adjustment to deliberate, theory-driven debiasing. The term 'implicit adjustment' describes rapid corrections like misattribution of arousal, while 'debiasing' refers to conscious efforts to correct bias.