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THE REFERENCE LIBRARY

Find a different
way to see it.

A growing collection of ideas for understanding the world — and your own thinking.

4,635 ideas to exploreArranged from A to Z
Cognitive Biasesintermediate

Self-Serving Criteria Bias

People may rate their own abilities differently depending on whose criteria they use. In the described experiment, participants given another person’s criteria lowered their self-ratings, while those using their own criteria showed little change. This demonstrates sensitivity to standards, without by itself establishing which ratings were more accurate.

psychology · sociology↗
Cognitive Biasesintermediate

Self-Serving Tendencies and Optimism

We see ourselves as unique and special, with optimistic views of ourselves and our family, overestimating our control over events and underestimating chance. This leads to overconfidence, attribution errors, and a tendency to credit ourselves for success but blame external factors for failure.

medicine · business↗
Heuristicsbeginner

Self-Talk for Confidence

Confidence is not solely derived from achievements; it is also cultivated by how you internally frame past hardships. By recalling instances where you persevered through adversity, you reinforce your ability to handle future challenges.

psychology↗

Selling Snow to a Penguin

Erikson describes Yellows as persuasive people who combine energy, vivid language, gestures, and personal attention. His examples show how a speaker’s appeal can influence a listener’s response to the message.

business · psychology↗
Mental Modelsintermediate

Semantic Engines and Syntactic Engines

Brains are semantic engines that extract meaning from the world, but as physical systems they are only syntactic engines—responding to physicochemical properties—and must approximate semantic understanding through syntactic processes.

neuroscience · artificial_intelligence↗
Heuristicsintermediate

Seneca's Barbell

The barbell strategy is a bimodal approach that combines extreme risk aversion in some areas with extreme risk-taking in others, avoiding the middle to achieve antifragility by reducing downside risk and allowing upside from positive Black Swans.

decision theory · finance↗
Cognitive Biasesintermediate

Senescence-Misinfluence Tendency

The passage offers a personal warning about aging, contrasting difficulty with new skills and retention of practiced ones. It recommends continued learning without establishing a uniform pattern of decline.

psychology↗

Sense of Control

The belief that one's actions influence outcomes (internal locus of control) is key to resilience, encouraging focus on controllable choices rather than external factors.

education · psychology↗
Cognitive Biasesintermediate

Sensemaking

Sensemaking helps us explain events, but a plausible story can give us more confidence than the evidence warrants. After learning an outcome, we may select details that fit it, overlook chance, and overestimate how predictable it was.

sociology · philosophy↗
Mental Modelsintermediate

Sensemaking

Interpreting language involves word structure, grammar, meaning, and context. The source uses these levels to explain why making sense of text requires more than identifying individual words.

technology · science↗
Mental Modelsintermediate

Sequence of Arrival of Information

The order in which information is received influences how it is structured into patterns, often resulting in suboptimal arrangements that require creative restructuring to enable further progress.

technology · business↗
Mental Modelsintermediate

Serendipity in Medical Breakthroughs

Many major medical breakthroughs, including cancer drugs and chemotherapy, have been discovered by chance rather than through directed research. These discoveries challenge the teleological view of science: serendipity matters in complex domains.

medicine · science↗
Heuristicsintermediate

Serious Play

Serious play means making room for curious, low-pressure exploration within work or practice. The Feynman anecdote illustrates how following an interesting question can renew engagement. Play may help with boredom or a creative block, while exhaustion can also require rest or changes to working conditions.

science · business↗
Cognitive Biasesintermediate

Serotonin and Randomness

A run of success can increase confidence even when luck contributed heavily to the results. Taleb argues that this can reinforce both the winner’s belief in their ability and other people’s impression of competence. He proposes serotonin as part of the explanation, but the behavioral lesson does not establish a particular biological mechanism.

finance · economics↗
Mental Modelsintermediate

Set a Tripwire

A tripwire is a signal chosen in advance to prompt a review of a decision. It might be a deadline, spending limit, unexpected problem, or pattern of results that would otherwise be easy to overlook.

business · economics↗
Mental Modelsintermediate

Set for Probabilistic Thinking

Wright and Phillips proposed that some respondents approached uncertainty in nonprobabilistic terms. They used both frequent certainty judgments and frequent expressions of not knowing to motivate the idea; those responses alone do not establish whether confidence was well calibrated.

sociology · psychology↗
Heuristicsbeginner

Set Goals

Setting realistic goals and breaking them into manageable steps helps resilient people cope with crisis situations by providing a clear path forward.

self-help · psychology↗
Mental Modelsintermediate

Set High Standards. Honesty. Discipline.

Warren Buffett and Charlie Munger's handling of the Salomon Brothers scandal illustrates the principle of maintaining personal standards far above legal requirements, prioritizing honesty, discipline, and reputation over short-term gain.

business · finance↗

Set Intentions

Before an activity or decision, name the outcome you want and how you intend to act. Use that intention to check whether your actions serve your aims.

business · education↗
Cognitive Biasesintermediate

Sets and Prototypes

System 1 effortlessly computes averages but cannot easily compute sums, leading to a neglect of quantity in judgments. This is demonstrated by experiments on line lengths and the Exxon Valdez oil spill, where people's willingness to pay was insensitive to the number of birds saved.

statistics · economics↗
Mental Modelsintermediate

Setting

Setting is the mental model that where something happens influences what happens. Your environment shapes your behavior and choices, and changing the location can alter outcomes in ways we often overlook.

literature · sociology↗
Heuristicsbeginner

Setting and Sticking to Goals and Deadlines

Breaking large projects into smaller, manageable steps with a visual timeline helps reduce mental clutter and improve goal achievement, applicable to tasks from professional projects to children's assignments.

business · education↗

Setting as a Force

Setting includes the physical, social, cultural, and historical conditions that shape a character’s choices. People also alter those conditions, so changing an environment can support a change in behavior.

sociology · psychology↗

Setting the Standards

Set clear standards for daily work before success brings recognition. Practicing those standards can build the habits and skills needed for better performance.

sports · business↗
Mental Modelsintermediate

Sextus Empiricus and Empirical Skepticism

Sextus Empiricus, an ancient Greek physician and philosopher, advocated for empirical skepticism—doubting theories and causality while relying cautiously on past experience. His Pyrrhonian skepticism promoted intellectual serenity through systematic doubt and opposition to dogma, influencing decision-making under uncertainty.

medicine · science↗
Mental Modelsintermediate

Sexual Harassment (Boundary Drawing)

The difficulty of defining acceptable behavior in harassment situations is addressed by setting a safe boundary early to create a buffer zone, protecting oneself from gradual escalation and manipulation.

law · sociology↗
Mental Modelsintermediate

Sexual Market Value as Currency

Sexual Market Value (SMV) acts as a currency in the sexual marketplace, where male SMV is built through performance and can appreciate over time, while female SMV is inherent but declines with age and partner count, following evolutionary strategies.

economics · sociology↗
Mental Modelsintermediate

Sexual Selection

The peacock's tail, seemingly maladaptive for survival, is explained by sexual selection: traits that improve mating success can evolve even if they hinder survival. Darwin's pursuit of contradictory evidence strengthened his theory.

science · psychology↗
Mental Modelsintermediate

Shadow Scaffold

A shadow scaffold is a proposed support for the practices that make another scaffold work. It may consist of tacit habits and relationships that help people use a temporary structure imaginatively and adapt it as they learn.

science · psychology↗
Mental Modelsintermediate

Shared Vision

A shared vision describes a future that people want to work toward together. Senge argues that it gives a team a common purpose, helps sustain effort over time and makes experimentation meaningful. A vision can focus on beating a competitor, but a purpose beyond that contest gives people something to pursue after they win.

psychology · sociology↗
Mental Modelsintermediate

Shifting the Burden

Shifting the burden occurs when short-term relief displaces work on an underlying problem and weakens the capacity to address it. Dependence on the quick fix then grows. In the related pattern of eroding goals, people close a performance gap by lowering their standards rather than improving results.

management · politics↗
Logical Fallaciesintermediate

Shifting the Burden of Proof

A logical fallacy where the arguer improperly places the burden of proving a claim on the opponent, arguing that because the opponent cannot disprove the claim, it must be true. It is a form of argumentum ad ignorantiam.

law · science↗
Mental Modelsintermediate

Shifting the Burden to the Intervenor

Shifting the burden is a systemic trap where short-term symptom relief undermines the system's own ability to solve the underlying problem, leading to increasing dependence and erosion of self-maintaining capacity.

science · psychology↗
Mental Modelsintermediate

Shifting Your Perspective

Shifting perspective can reveal information and assumptions that are hard to see from your own position. Parrish’s workplace example uses questions and listening to check how another person understands the situation.

sociology · physics↗

Shiller Redux

Taleb uses Robert Shiller’s 1981 volatility study to question whether more financial information improves judgment. He presents Shiller’s dispute with Robert Merton and Merton’s later hedge-fund role as a tension between efficient-market theory and practice.

finance · economics↗

Shoehorning

Shoehorning is the cognitive bias of force-fitting current events into one's existing beliefs or agenda, often by misinterpreting prophecies, predictions, or other sources to appear as confirmation.

politics · religion↗

Short-Term Memory

Short-term memory temporarily holds information for about 20 to 30 seconds before it is forgotten or stored in long-term memory. Repeating the information can help you retain it.

neuroscience · education↗
Mental Modelsintermediate

Short-Termism Trap

Leaders and managers often achieve short-term success by deferring maintenance, understaffing, or neglecting long-term investments, creating hidden problems that manifest later. This concept warns that reported efficiency gains may come at the expense of future resilience.

management · business↗

Show Me the Evidence

A long reference list can make promotional claims look more convincing than their evidence warrants. The source examines a report on chess and intelligence, asking what kinds of research its references actually contain.

science · education↗
Mental Modelsintermediate

Show that uncertainty is justified

When communicating about uncertain topics, explicitly acknowledging the uncertainty and setting realistic expectations can make you more persuasive than claiming certainty. Examples include Jeff Bezos discussing Amazon's uncertain success and a lawyer advising clients not to trust attorneys who promise specific outcomes without sufficient information.

law · business↗
Mental Modelsintermediate

Shrouded Attributes as Sludge

Shrouded attributes are hidden costs of a product that are difficult to discover, leading to a true cost higher than the headline price. They create 'sludge' that makes shopping and decision-making more difficult for consumers.

marketing · business↗
Heuristicsbeginner

SIFT

SIFT stands for Stop, Investigate the source, Find other coverage, and Trace the claim to its original context. It turns questions about credibility into concrete steps for finding context before assessing a piece of online content.

technology · education↗
Heuristicsbeginner

SIFT (The Four Moves for Information Evaluation)

When encountering information online, first ask 'Do we know what we are looking at?' rather than 'Is this true?' SIFT is a quick heuristic (Stop, Investigate the Source, Find Other Coverage, Trace the Claim to the Original Context) to gain essential context before deeper analysis.

technology · education↗
Mental Modelsintermediate

Signs a Belief Might Be an Identity

A belief may become part of your identity through group affiliations and public self-presentation, or through subtler attachments that make it feel personal and difficult to question.

sociology · psychology↗
Mental Modelsintermediate

Signs of a Scout

Feeling objective does not establish that you are examining a situation fairly. Galef uses a disagreement about a pet to show how calmly presenting a preference can be mistaken for considering another person’s perspective.

sociology · philosophy↗
Mental Modelsintermediate

Silence in Many Quarters About Organisational Politics

Organizational politics is often avoided in formal discussion due to rationalization, lack of evidence, and fear of repercussions, but this silence poses a significant threat to organizational effectiveness. Addressing it requires equipping individuals with skills to recognize and manage political behavior.

politics · psychology↗
Cognitive Biasesintermediate

Silent Evidence

Silent evidence refers to the invisible successes or survivors that are not accounted for, leading to a biased perception of reality. In medicine, a drug that saves many lives may be avoided because the harms are visible anecdotes while the saved lives remain invisible statistics.

medicine · statistics↗
Mental Modelsintermediate

Silent Evidence

The concept that our observations and inferences are systematically distorted by the absence of data from unobserved or unrecorded cases, leading to overestimation of certain phenomena and underestimation of fragility.

sociology · science↗
Cognitive Biasesintermediate

Silent Evidence (Survivorship Bias)

Survivorship bias arises when the cases we observe exclude failures or other missing outcomes. Taleb’s drowned-worshippers story asks what evidence is absent before we credit a practice with success.

history · science↗
Cognitive Biasesintermediate

Silent Evidence (The Health Club for Rats)

Silent evidence is a cognitive bias where we only observe survivors and mistakenly attribute their survival to external factors, ignoring the non-survivors. The rat health club metaphor illustrates how selection bias creates false narratives about causality.

business · philosophy↗
Mental Modelsintermediate

Silver Beats Gold

Taleb favors the Silver Rule—avoiding treatment you would reject for yourself—over imposing your idea of what others should want. He applies this preference for restraint and reciprocal treatment to individuals, groups and countries.

politics · ethics↗

Silver Lining Thinking

Looking for another interpretation of a setback can reveal something useful to do next. Reframing may change a response without making the event itself favorable.

psychology↗
Cognitive Biasesintermediate

Silver Medal Bias (Counterfactual Thinking in Medalists)

The proposed explanation for medalists’ differing satisfaction is counterfactual comparison: silver medalists may focus on missing gold, while bronze medalists may focus on narrowly winning a medal. The supplied discussion asks whether this mechanism accounts for the observed reactions.

sports · psychology↗
Cognitive Biasesintermediate

Silver Medal Bias (Counterfactual Thinking)

The Olympic medal study examined whether silver medalists appeared to focus on nearly winning gold while bronze medalists appeared to focus on nearly missing a medal. The reported ratings support a difference in apparent counterfactual focus, a proposed explanation for differing satisfaction.

psychology↗