The Laws of
Game Theory

The Law of Stated Purpose

How can you tell whether an institution is failing or working as designed? Compare what an institution says it exists to do with what it reliably produces, measured over decades. Where the two have diverged for a long time while remedies existed and were refused, the divergence is not failure but design.

The mechanism

The test has three parts, and all three must hold. Most people stop after the first, which is why the law gets quoted badly.

A long divergence. Not a bad year. Decades, measured with numbers the institution did not choose for itself.

A known remedy. Somebody, somewhere, solved this — a comparable body elsewhere, a pilot, an internal proposal. If nobody has ever solved it, you are looking at a hard problem.

Repeated refusal. The remedy was raised, studied and declined more than once, and the stated reasons for declining changed while the decline stayed constant. Shifting justifications for a fixed position is the strongest single signal available.

The mechanism is selection, not conspiracy. An institution that produces a particular outcome is comfortable for those who benefit and uncomfortable for those who do not. Over decades the first group stays and rises. Eventually it is staffed entirely by people who sincerely believe the stated purpose and reliably decline every remedy, without anyone ever having decided to.

A worked example

Take any licensing board, professional association or standards committee you know from the inside.

Write down its charter in one sentence, in its own words and at its most generous. Then write down what it reliably produces, measured over twenty years using numbers gathered by somebody with no stake — not its own annual report.

If the charter says "protect the public" and the twenty-year record shows a body that has restricted entry, raised prices and disciplined almost nobody, you have a divergence. Now apply the second and third tests: has a comparable body elsewhere done it differently, was that raised, and what happened to the proposal each time it came up?

Small bodies are where this is legible, because you can actually find out. Famous institutions are where it is loudest and where you will most often be wrong.

What would prove this wrong

A divergence that survives all three tests but turns out to be produced by a constraint invisible from outside — a legal exposure, a funding condition, an agreement not in the public record. Refusal-under-constraint and refusal-by-design look identical from the outside, and this is the law's real failure mode.

Where it comes from

Book One, chapter Game Theory #2: Why Schools Suck. The signature move of the entire course. The law is named in the second edition of that volume.

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Last reviewed 31 July 2026