THE REFERENCE LIBRARY
A growing collection of ideas for understanding the world — and your own thinking.
Instead of relying on surface-level cues like typos, unbiased language, or contact information to judge a website's credibility, effective evaluation requires using the web's networked properties—searching for external information about the source rather than trusting the page itself.
Caulfield and Wineburg recommend leaving a website to investigate its credibility elsewhere. Reading a page carefully can reveal what it claims, but checking independent information about the source requires lateral reading.
Extreme ideology rigidly narrows thinking and undermines intellectual honesty. To counteract this, one should be able to state opposing arguments better than their proponents before claiming an opinion.
Munger advocates a clear moral code and vivid examples when persuading clients. The passage also presents Marks on resisting crowd emotions and Buffett on investing within his circle of competence.
When someone criticizes a group or belief system we identify with, we often feel a defensive reaction, even if the criticism is mild or true. This cognitive bias stems from the involvement of our identity and can prevent rational evaluation of the critique.
When asking an expert for help, show the work you have already done, make a specific request, respect their time, ask how they reason, and follow up with what happened.
A technique for maintaining task conflict without relationship conflict by framing disagreements as debates and focusing on 'how' rather than 'why', exemplified by the Wright brothers' productive argument about propeller design.
The author visits a famous haunted house and, despite being a skeptic, experiences feelings of presence and fear due to context and suggestion, highlighting how humans can misinterpret ambiguous stimuli as supernatural evidence.
In Erikson’s color model, Greens are described as valuing relationships and avoiding conflict. His feedback advice is to name the behavior, explain its effect, and speak gently.
Reds have an intense need to control people and their actions, not just facts or details; lacking this control leads to frustration.
When providing estimates, explain their basis—whether from expert input, surveys, or past data—to convey confidence without overstating certainty.
When persuading results-oriented individuals who may ignore emotional appeals, break down issues into tiny, specific examples that link their actions to tangible negative outcomes, making them see the practical consequences.
A communication technique that involves using specific, factual examples (e.g., timing someone's talk time) to deliver clear feedback, making the message harder to dismiss and easier to acknowledge.
Charlie Munger advocates for giving away wealth while still alive to experience the joy of giving and to make a rational contribution to society, distinguishing himself from typical businesspeople who outsource giving.
A local maximum is at least as good as nearby alternatives; a global maximum is at least as good as every alternative in the defined search space. Improving a locally good solution may require trying a different approach, sometimes accepting a temporary decline without knowing whether it will pay off.
Break large tasks into smaller subtasks with deadlines to avoid procrastination and mental clutter. This approach helps maintain focus and reduce overwhelm.
Loss aversion shows we are more driven to avoid losses than achieve gains, and goals act as reference points where failing to meet a goal is a loss and exceeding it is a gain. This asymmetry leads to behaviors like working harder to avoid a bogey in golf than to achieve a birdie.
The Wright brothers achieved powered flight by taking calculated risks and tolerating setbacks, recognizing that progress requires step-by-step evolution and acceptance of potential losses.
A logical fallacy that excuses contradictions by appealing to divine mystery, refusing to revise theological ideas in light of reason.
Taleb criticizes the move from describing a statistical average to treating it as a social ideal. In his account, labeling deviations as errors can confuse a measurement model with a judgment about how people ought to be.
Kurt Gödel proved in 1931 that any consistent logical system rich enough to express arithmetic must contain statements that are true but cannot be proved or disproved within the system, a result that shattered the belief in a complete, logically perfect mathematical universe.
Charlie Munger favors productive businesses over gold, which he describes as useful for concealing wealth in an extreme crisis. The accompanying Buffett interview emphasizes understanding investments, accepting mistakes and avoiding losses that could wipe an investor out.
In the historical studies described here, the Goldberg Rule combined MMPI scores more accurately than the clinicians who judged the same cases. The comparisons illustrate how a consistent statistical rule can outperform expert judgment, even after training or access to the rule’s result.
The concept of 'Golden Mediocrity' refers to the historical ideal of the average or mean, popularized by statistician Adolphe Quételet, who defined a 'normal man' (l'homme moyen) through statistical averages and treated deviations as abnormal. This notion influenced socialist thinking and has been critiqued for ignoring individual specialization and variability.
A good argument in deductive reasoning must be valid (conclusion follows from premises) with all true premises (sound). In inductive reasoning, it must be strong (conclusion likely follows) with all true premises (cogent). Bad arguments fail one or both conditions, often due to formal or informal fallacies.
Good arguments combine logic and emotion, aiming to understand differing perspectives rather than to win. They involve finding the root of disagreement, building bridges, and engaging emotions to foster connection and mutual understanding.
Charlie Munger emphasizes that absorbing elementary worldly wisdom through good behavior and principles is beneficial for serving others, serving oneself, and making life more fun. He advocates for sticking to these principles despite personal lifestyle choices.
Charlie Munger advocates that the most reliable path to success is to behave in a way that earns deserved trust, focusing on deserving what you want rather than gambling or speculating. He emphasizes learning from others' mistakes and betting selectively to avoid catastrophic losses.
A useful test of truth-seeking is whether you can identify critics who understand your position and raise fair objections. Galef uses Darwin’s response to a thoughtful negative review to show what this looks like.
Even well-reasoned decisions can lead to negative outcomes, especially when all options are bad. The quality of a decision should be judged on the process and information available, not solely on the result.
Resulting is the cognitive bias of judging a decision's quality by its outcome rather than by the process and information available at the time. Recognizing this bias helps us evaluate decisions more accurately and avoid unfair blame or praise.
Good design is not limited to physical architecture but applies to processes such as clinical trials, cockpit interfaces, and organizational roles, balancing multiple goals like purpose, usability, clarity, sustainability, and budget.
Not all frames are equal; some frames lead to more rational decisions than others. The text discusses how framing affects decisions in scenarios like lost tickets vs. lost money, the MPG illusion, and organ donation defaults, showing that inclusive and broader frames tend to improve decision quality.
Munger compares habits to chains that become harder to break with repetition. His advice is to cultivate useful habits and address harmful ones before they become entrenched.
The dot-com bubble illustrates how expectations of future growth can outrun evidence about individual businesses. The model asks what information supports an investment story before money, time, or reputation is committed.
A heuristic for evaluating summary sources by considering their position to know, incentives to be careful with the truth, and whether they are genuinely engaged in providing a summary rather than using it as a setup for a less trustworthy claim.
Good thinking requires both proper brain care (nutrition, exercise, sleep, mental activity) and the courage to let go of irrational beliefs in favor of skeptical, rational thinking.
The riddle shows that consistent observations can confirm contradictory theories, illustrated by the grue paradox where observing blue objects confirms either that they are blue or that they are grue (blue until time t then green).
Finite observations can fit more than one rule, with different implications for what comes next. Taleb uses Goodman’s riddle to question why we favor one generalization over another, linking it to the choice among competing narratives.
Search results from Google often reflect the user's assumptions and the way they phrase their query, rather than providing an objective answer. This can reinforce misconceptions if the user is not careful, as illustrated by the learning styles controversy.
Use Google Scholar to look for research behind a historical claim and trace the evidence cited by its source. A sparse scholarly record can prompt further investigation, but search results alone do not establish whether the claim is true.
The source illustrates lateral reading with Google’s search-result information menu: use outside information to investigate who runs a site and how others describe it. The screenshots show the interface at publication, so the specific controls and ratings are historical examples.
Taleb favors funding many adaptable researchers and small experiments, allowing them to pursue discoveries beyond a fixed initial plan. He argues that this spreads exposure to rare, large successes; the passage presents a funding philosophy rather than a proof that equal small grants are always optimal.
Graphic facilitation is a visual communication tool that uses real-time drawing and mapping to capture group discussions, improving clarity, focus, and collaborative decision-making.
Taleb contrasts ordinary variation in Mediocristan with Extremistan, where rare events can dominate the total. His grass-and-trees analogy warns against using a Gaussian model when it assigns too little weight to consequential extremes.
Fractal randomness can transform some Black Swans into Gray Swans by allowing us to model extreme events, but not all surprises can be eliminated. The distinction lies between modelable extreme events (Gray) and completely unforeseen events (Black).
Charlie Munger's great grandfather believed that truly life-changing opportunities are rare, and when one appears, you must seize it boldly and fully rather than hesitantly. Munger adopted this rule and credits it as a key to his success.
Taleb argues that blaming a financial crisis on greed alone leaves the system’s vulnerability unexplained. He favors examining how institutions contain or amplify behavior that has long existed.
Green behavior is a personality trait centered on helping others, fostering harmony, and demonstrating empathy. Notable examples include Mr. Rogers, Gandhi, Michelle Obama, Jimmy Carter, and Jesus.
In this passage, Taleb connects the green lumber fallacy with a distinction between predicting an event and managing its impact. Changing exposure can reduce harm even when the event remains hard to forecast.
In Erikson’s color framework, Green describes a preference for security and familiarity. He recommends listening to worries without dismissing them and supporting manageable steps into unfamiliar situations.
Greens are relaxed, methodical, and discreet individuals who prefer small groups and friendly but reserved interactions. They avoid being the center of attention and need trust to open up fully.
In Erikson’s color framework, Greens prefer stability, predictable plans, and clear responsibilities. He recommends explaining a proposed change in detail and checking that the person is comfortable with the plan.
Erikson describes a Green pattern of withdrawing from conflict and taking criticism personally. He recommends private feedback that maintains respect and specifies the behavior to change.
Erikson portrays Greens as reliable, team-focused people motivated to avoid causing trouble and to please others. The description can prompt discussion of teamwork, but a label alone does not establish someone’s capacity or reliability.
Green taxes, particularly carbon taxes, are used by governments to set a price on emissions, incentivizing reductions and innovation while generating revenue. Effective design can account for behavioral biases like loss aversion and present bias through gradual implementation and progressive revenue use.
Erikson describes a response to criticism in which self-blame and compensating gestures leave the requested behavior unchanged. His example distinguishes an apology from following through on the specific issue.
Thaler and Sunstein propose greenhouse-gas disclosure as a way to inform public pressure and policy. They describe mandatory and voluntary inventories but acknowledge that their effects were not well established when they wrote.
When currencies with different underlying values must circulate at the same official value, people have an incentive to spend the overvalued currency and retain the undervalued one. Broader applications are analogies about incentives.
Grey areas often lead people into black-and-white thinking. Logical reasoning can include the middle ground, while arbitrary cutoffs risk obscuring it.