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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

Motivated Reasoning Spiral

The self-reinforcing process by which desired conclusions shape the reasoning that's supposed to evaluate them

Mental Model

Motivational Interviewing Core Skills

Motivational Interviewing (MI), developed by William Miller and Stephen Rollnick, is a collaborative conversation style for strengthening a person's own motivation for change

Mental Model

Mottainai (Waste Nothing)

Mottainai is a Japanese term expressing a sense of regret and moral discomfort at wastefulness, encompassing concepts of reduce, reuse, recycle, and respect in a single word

Mental Model

Motte-and-Bailey Fallacy

A motte-and-bailey pattern alternates between a stronger consequential claim and a more defensible narrower claim, treating defense of the latter as if it supported the former

Cognitive Move

Move to Think

A short, comfortable bout of movement (1 to 5 minutes) can restore the attention or initiation the task needs; then retest the same mental function.

Mental Model

Moving the Goalposts

Changing the criteria for success after they've been met, making satisfaction of the argument impossible

Mental Model

Mr. Market

Benjamin Graham's allegory of a business partner who repeatedly offers to buy or sell at changing prices

Mental Model

Multi Criterion Decision Making

Multi-criteria decision making compares options across several relevant dimensions using explicit constraints and tradeoff assumptions

Mental Model

Multi-Armed Bandit Problem

The classic explore-exploit problem: you face multiple slot machines ('arms') with unknown payoff rates

Mental Model

Multi-Party Negotiation Dynamics

Multi-party negotiations introduce complexities absent from bilateral deals: information management becomes harder (what each party knows about others' positions), process design matters enormously (who speaks when, what…

Mental Model

Multi-Sided Platform

A business model that creates value by facilitating interactions between two or more distinct user groups who need each other

Mental Model

Multiple Identity Integration

Multiple identity integration (MII) describes how individuals manage the relationship between their various social identities—professional, cultural, gender, ethnic, religious, political, and others

Mental Model

Multiplication

In Josh Kaufman's business usage, multiplication means reproducing an entire process or operating system so it can deliver value in additional instances

Mental Model

Muqaddimah Framework for Historical Analysis

The Muqaddimah (1377), Ibn Khaldun's prolegomenon to his universal history, establishes a methodology for historical analysis that demands causal explanation rather than mere chronicle

Mental Model

Murder in Trafalgar Square

Dennett describes people with different experiences and information routes who nevertheless share the belief that a murder occurred in Trafalgar Square

Mental Model

Murphy’s Law

An engineering adage used as a prompt to anticipate plausible failures and design proportionate prevention or recovery

Cognitive Move

Must protect

The tier for outcomes you will never trade away, no matter how much the other outcomes gain. If an option violates one, it is off the table before you compare it. Keep this tier small, one or two items at most.

Cognitive Move

Must-coexist

Some pairs cannot be staggered. Flag the two items that have to be true at the same moment, not merely both done eventually, because finishing one early and letting it lapse leaves you no further ahead.

Cognitive Move

Must-precede

Marks a hard ordering link: item B literally cannot start or finish until item A is done. You are testing necessity, not habit. Ask what physically or logically breaks if you flip the order. If nothing breaks, it is not this kind of link.