10,000 Hours of Play by OP Hero: King Sejong the Great
The king who spent absolute power making literacy cheap: King Sejong the Great's full 10,000 Hours of Play…
Work with Yu-kai
The Blog
Ideas on motivation, behavior & design.
Deep dives on the psychology behind why people do what they do — from Yu-kai Chou, creator of the Octalysis Framework. Pick the topic that matters to you.
Nationcraft Analysis: Rwanda Star Pupil Trap 2026
Rwanda executes the Singapore playbook without Singapore's endowments. The Star Pupil Trap: donor money and Congo's chaos finance…
Nationcraft Analysis: Germany Consensus Trap 2026
The Consensus Machine Trap: Germany's stability machinery now blocks the renewal its 9/10 economy needs, and the September…
10,000 Hours of Play by OP Hero: Carl Jung
Carl Jung treated his own unconscious as the ultimate unexplored map. Here is his full OP Hero build:…
10,000 Hours of Play by OP Hero: Martina Navratilova
She defected at 18, was mocked as unfit, then built Team Navratilova and an 86–1 season. Martina Navratilova's…
Intrinsic vs Extrinsic Motivation: The Complete Framework (and Why Rewards Backfire)
Intrinsic vs extrinsic motivation: clear definitions, the overjustification effect, when rewards help or backfire, and the Octalysis Left-Brain/Right-Brain…
Operant Conditioning: Reinforcement, Punishment & the Reward Schedules That Run Games
Operant conditioning explained with rigor: the four quadrants, schedules of reinforcement, why variable-ratio is so powerful, and how…