Be nice.
Have teeth.
Where game theory meets classical philosophy — the bridge between the science proves it and the sages already knew. Wisdom you can use Monday morning.
“The best revenge is not to be like your enemy.” — Marcus Aurelius
Start readingThe essays
One law, proven four times over — in a laboratory, in the trenches, in a creature with no words, and between two nations at the edge of the world. Read them in order, or wherever the thread pulls you.
The cornerstone The Four Rules A 1980 computer tournament found the winning way to live. It had four rules. An emperor had written them down eighteen centuries earlier.Three proofs of the same law
The hardest proof
The Truce No One Ordered
In the WWI trenches, enemies ordered to kill each other quietly stopped — not from friendship, but because the game repeated. The four rules, alive under fire.
The proof with no words
The Animal That Keeps Score
A vampire bat shares its blood with a hungry roost-mate — and the giving follows who gave back. Tit for tat in a creature with no language and no morals, only memory.
The law played forward
The Ladder Down
After nearly ending the world in 1962, two superpowers climbed down the ladder one small, public step at a time. De-escalation as strength — tit for tat offered first, with its teeth still showing.
The proof that is about you
The Echo
Not a lab, not a war, not a bat — your own week. How two decent people lock into a feud over one misread move, and why forgiveness is the only thing that breaks it.
In a hurry?
The Pocket Rules
The whole law pressed small enough to carry: one line to remember, one move to make the next time it is your turn.