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People, books, and breakthrough ideas—connected to the mental models and moves you can use.

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Cognitive Move

Split by mechanism

Take one crowded bucket and cut it along the different processes that actually produce its cases. You ask what causes each case, not what it looks like on the surface, then give each distinct cause its own group.

Mental Model

Spoon Theory (Miserandino)

Christine Miserandino's Spoon Theory, originally created to explain the experience of living with lupus, uses a metaphor of spoons representing finite daily energy units

Cognitive Move

Spot

Name the observable cue that triggered you and the exact mental function it blocked, before doing anything else.

Mental Model

Spotlight Effect

The tendency to overestimate how much other people notice and evaluate your appearance, behavior, and performance—believing you're in a 'spotlight' that doesn't actually exist

Cognitive Move

spread of many runs

The same model run hundreds of times with the uncertain inputs redrawn each time, and all the outcomes shown at once as a band with a few sample paths inside it. The band answers a different question than any single run. Not what happens, but how wide the range of what happens is. It is the one sub-mode that shows the bad tail, which is often the number the decision turns on.

Cognitive Move

spreadsheet

The rule lives in a cell rather than in your head, and the grid holds the inputs beside it. Change one input and every dependent cell moves, so the question shifts from what is the answer to which input the answer is most sensitive to.

Cognitive Move

Spreadsheet

Lay the quantities out as cells and wire the relationships as formulas, so changing one number pushes the change through every dependent number at once. Best when the question is about amounts moving over time, not about which branch to take.

Mental Model

Spring-loading

A strategic pattern of building up potential energy—resources, capabilities, relationships, or advantages—before releasing it for maximum impact

Cognitive Move

Stable names

Pick one fixed word for each recurring thing and use only that word, everywhere, forever. No synonyms, no drifting phrasing, no renaming the same thing on page four. Later parts add symbols and arrows; this one just freezes the vocabulary.

Mental Model

Stag Hunt (Cooperation vs Safety)

A coordination game where mutual cooperation is preferable but unilateral cooperation is risky relative to a safer individual action.

Cognitive Move

Staged alternative

Turns "X or Y" into "Y first, then X, once a named condition is met." You are not splitting the difference or leaving the pair; you are putting both poles on a timeline and writing down the trigger that flips you from one to the other.

Cognitive Move

Staged commitment

Break one big irreversible bet into a sequence of smaller ones, and let each stage buy information that decides whether the next stage happens. You pay for the plan in installments instead of writing the whole check on day one.

Mental Model

Stages of Change Model (Prochaska & DiClemente)

The Transtheoretical Model identifies five stages of behavior change: Precontemplation (unaware of need), Contemplation (considering change within 6 months), Preparation (planning to act within 30 days), Action (actively…

Mental Model

Stages of Change Model (Transtheoretical Model)

The Transtheoretical Model, developed by James Prochaska and Carlo DiClemente from studying how smokers successfully quit, identifies five stages of intentional behavior change: Precontemplation (not yet considering chan…

Mental Model

Stages of Faith (Fowler) — Applied Framework

James Fowler's faith development theory describes six stages of meaning-making that apply regardless of religious belief or non-belief: Stage 1 (Intuitive-Projective, childhood imagination), Stage 2 (Mythic-Literal, conc…

Mental Model

Stakeholder Ethics Model

Stakeholder ethics argues that organizations have moral obligations not just to shareholders but to all parties significantly affected by their decisions—employees, customers, suppliers, communities, and the environment

Cognitive Move

Standardize

Give repeated work a stable template, checklist, or definition of done.

Mental Model

Stanford Prison Experiment

Zimbardo's 1971 study demonstrating how rapidly normal people adopt abusive behaviors when placed in positions of authority within certain institutional structures

Cognitive Move

Starts but will not sustain

A good habit or flywheel begins but fades because its rewards arrive too weakly or too late to fuel the next turn.