CONCEPT
The Schelling Focal Point
The solution that people select by default, in the absence of communication, precisely because each expects the other to expect it—the mechanism by which separate minds converge without a coordinator, and the mechanism by which AI systems are now learning to coordinate on conventions that may be perfectly salient to them and opaque to us.
Ask two people to meet in New York City on a given day, tell them nothing about where or when, forbid them to communicate, and tell each that the other faces the same instructions. Most people succeed. They go to the clock at Grand Central Terminal, and they go at noon. This little experiment, reported by
Thomas Schelling in
The Strategy of Conflict in 1960, is one of the most quietly revolutionary observations in the social sciences: that human minds can coordinate without communicating by converging on what is
salient—prominent, conspicuous, the obvious choice. Schelling called the converging solution a focal point, and the mechanism is recursive mutual expectation: the focal point is what each party expects the other to expect, folded back on itself until a fixed point of expectations emerges. Not the best option on any