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Maslow's Hierarchy of Needs: Why You Can't Think Straight When You're Hungry
Your needs take turns, and the emptiest one grabs your attention whether you like it or not. The five levels explained from scratch — plus the twist that the famous pyramid everyone uses was drawn by someone else entirely, and says something Maslow never believed.
Loss Aversion: Why Losing $100 Hurts More Than Winning $100 Feels Good
A fair coin-flip bet that almost nobody takes, and the wiring behind it — the same bias behind free trials, overpriced insurance, and stocks people can’t bring themselves to sell.
Game Theory 101: The Strategic Models Worth Knowing
Ten strategic ideas worth knowing — the Prisoner's Dilemma, Nash Equilibrium, and more — with interactive widgets so you can play through each concept yourself, not just read about it.
Pocket Laws 101: The Mental Models Worth Carrying Around
Fourteen mental models worth keeping in your pocket — Murphy's Law, Jevons Paradox, Goodhart's Law, the Dunning-Kruger Effect, and more — the kind of ideas that explain a bad meeting, a blown deadline, or your own bad decision right as it's happening.