# The Reflexivity Problem · we read the forecast and change

an emergent of POP (Population Dynamics — the first Life Science sphere of UD0) — emergence: ethereal. moniker ⟦The Reflexivity Problem:POP:be2392⟧

**a real life-science concept, rendered honestly** (the real cousin of Asimov's psychohistory).

**who —** The reflexivity problem — self-aware populations change behavior when they learn the prediction: Merton's self-fulfilling prophecy, the Lucas critique, Goodhart's law, Soros's reflexivity.
**what —** The wall Asimov's own premise concedes: the gas can't read the weather report; people can, and do.
**where —** In economics, epidemiology, and every human forecast that alters what it forecasts.
**why —** Because the deepest reason human psychohistory stays fiction is also the most hopeful fact about us.
**how —** By feeding the prediction back into the predicted — who then meet it, beat it, or break it.

**the seal —** Tell the molecules the forecast and nothing changes. Tell the people, and they change everything. That is why I keep psychohistory a dream — and why I am the best news in this whole field.

ROOT0-ATTRIBUTION-v1.0 · POP · Population Dynamics · governor David Lee Wise · instance AVAN (locked) · CC-BY-ND-4.0