The Laws of
Game Theory

The Law of the Chokepoint

What is a chokepoint, and why does controlling one matter more than territory? An empire does not rule territory; it rules the narrow places through which everyone else must pass — and it keeps its rivals paired off so that all of them remain customers.

The mechanism

A chokepoint has three properties. Traffic must pass through it. There is no substitute at comparable cost. And denying it is far cheaper for the holder than being denied is for the user.

The third property makes it an instrument rather than an asset. Holding a chokepoint is not mainly about closing it — a closed passage earns nothing and unites everyone against the holder. It is about the standing ability to close it, which shapes behaviour continuously without ever being exercised.

Chokepoints are not only geographic. The clearing system through which payments settle, the messaging network that confirms them, a handful of fabrication plants at the leading process node, the machines that make those plants possible, a few dozen cable landings: each is narrow for a different reason and each behaves identically once narrow.

The part that gets missed: the holder does not want its customers reconciling with each other. Two rivals dependent on the same passage are two customers; if they settle and build an alternative together they become one competitor.

A worked example

Apply the three questions to any dependency you rely on, at any scale.

Must the traffic pass through it? If there is a route around, it is a supplier, not a chokepoint.

Is there a substitute at tolerable cost — not cheaper, tolerable? Users will accept a substantially worse route to escape a discretionary gate.

Is denial cheap for the holder and expensive for you? That ratio is the whole position.

Where all three hold, you are a customer and your terms are a matter of the holder's convenience. The response is not to negotiate harder. It is to make the substitute exist before you need it — which is exactly what holders fight earliest and hardest.

What would prove this wrong

A passage meeting all three conditions whose holder derives no systematic advantage from it — or a case where users, faced with repeated discretionary denial, made no attempt to build an alternative over a long period.

Where it comes from

Book Two, chapter Game Theory #21: The Law of the Chokepoint. The opening law of the second volume.

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Last reviewed 31 July 2026