Extremal Goodhart

Extremal Goodhart is a lens. Nothing in the world changes when you pick it up, but quite a lot becomes visible.

The idea is simple, and like most simple ideas it is easy to nod at and hard to use. The nod is free. The use costs attention, every day, in small change.

Think of the grandfather who plants a mango tree he will never sit under. Ask him why, and he will look at you as if the question were the strange thing.

In the end, life asks only whether we were awake while it happened. The name is new; the wisdom stood at bus stops long before either of us.