Why self-modifying AI is the sharpest test case for rational choice theory

jessi_cata · x · 2026-09-04

The author argues that human rationality is a blend of heuristic bundles (in-distribution) and rational choice theory (out-of-distribution), and that understanding human rationality requires empirical psychology — proving "choiceworthiness" for humans is genuinely hard.

Echoing Eliezer Yudkowsky, they contend that self-modifying AI systems are the most important model for rational choice theory: the mathematically sharpest version of the theory applies to AIs, not animals, and reflective instability in self-modifying systems is a serious problem. AI thus becomes both the cleanest test bed for decision theory and the setting where its hardest problems bite.

Related event: Rational choice theory only truly works with superintelligence, author argues(3 posts)→

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