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

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Mental Model

Pomodoro Technique Protocol

A time-management and focus protocol created by Francesco Cirillo that uses a kitchen timer to structure work into 25-minute focused sprints separated by short breaks

Mental Model

Ponzi Dynamic Recognition

The structural pattern underlying all Ponzi schemes: returns to existing participants are funded by capital from new participants rather than by actual value creation, making the scheme mathematically certain to collapse…

Cognitive Move

Population

Write down exactly which people, accounts, or units get counted, and which ones you exclude. Spell out the entry rule, the cutoffs, and who drops out, so two people pulling the number pull the same set.

Cognitive Move

Population, cases, or time window covered

States exactly who and what the floor protects, and over what stretch of time. A floor that holds for most people most days is a different promise than one that holds for everyone, every single time, with no exceptions carved out quietly.

Cognitive Move

Portfolio / barbell

Hold several differentiated bets at once, often pairing very safe with very bold.

Mental Model

Portfolio Career Model

Charles Handy predicted that single-employer careers would give way to a 'portfolio' of concurrent income streams, projects, and roles

Cognitive Move

Portfolio Instead of Pick

When uncertainty can't be reduced, run several differentiated bets instead of forcing one choice.

Mental Model

Portfolio Theory

Markowitz's foundational insight that risk depends not on individual assets but on how they interact

Mental Model

Positive-Sum Thinking

The recognition that many interactions can increase total value rather than merely redistributing a fixed amount

Cognitive Move

Positive/negative cases

Name a real episode that clearly counts as the thing and a matched one that clearly does not, then say what separates them. Pair them so the contrast pins down the line, instead of offering one flattering illustration that anything could resemble.

Mental Model

Possible Selves Theory (Markus & Nurius) — Applied

Hazel Markus and Paula Nurius' possible selves theory identifies three categories of future self-representations that powerfully motivate behavior: hoped-for selves (who you want to become), expected selves (who you thin…

Mental Model

Post-Conventional Morality (Kohlberg)

Kohlberg's highest stage of moral development where ethical reasoning transcends social convention and even law—operating from self-chosen universal principles

Mental Model

Post-Honeymoon Intimacy Rebuilding

The post-honeymoon phase describes the predictable decline in sexual frequency and novelty-driven excitement that occurs roughly 18-36 months into a relationship as neurochemistry shifts from dopamine/norepinephrine-driv…

Mental Model

Post-Secular Spirituality

Post-secular spirituality describes the emerging cultural phenomenon where individuals and societies move beyond the binary of traditional religion vs

Mental Model

Post-Traumatic Growth (Applied Framework)

Post-traumatic growth (PTG), researched by Richard Tedeschi and Lawrence Calhoun, describes positive psychological change that emerges from the struggle with highly challenging life circumstances

Cognitive Move

poster or one-pager

A single large surface holding several blocks at once, with no reading order at all. Different readers enter at different blocks and leave after one. It rewards a layout where every block stands alone and punishes anything that only makes sense after you have read the block above it.

Mental Model

Potemkin Village

The historical (possibly apocryphal) story of Grigory Potemkin building fake villages along the Dnieper River to impress Empress Catherine II during her visit to Crimea—presenting a façade of prosperity that masked reali…

Mental Model

Power Distance Navigation

Power Distance measures the degree to which less powerful members of a society accept and expect unequal power distribution

Mental Model

Power Laws

Power laws express scale relationships through an exponent