Psychology
Merleau-Ponty's claim — buried in a postscript reprinted in a telerobotics anthology, of all places — is that emotions aren't hidden interior states but visible behavioral patterns, and that studying your own anger from the inside yields only "a few pangs, a few heart-throbs." You only understand your feelings when you treat yourself as a third person. Munger arrives at the same junction from the opposite direction: he catalogs two dozen cognitive biases that make introspection unreliable and concludes that psychology is "electromagnetism after Faraday but before Maxwell" — a field drowning in findings no one has unified. What's striking is that both thinkers identify the same structural defect (the privileged first-person view is the worst vantage point for understanding the first person) and both were ignored by the professional psychologists of their respective eras. Meanwhile Gleick traces how behaviorism — which tried to solve the introspection problem by abolishing interiority altogether — only broke open when information theory gave psychologists permission to talk about internal representations again, not through introspection but through mechanical analogy. The black box got opened not by looking inside yourself but by building a crude copy and watching it from the outside. Merleau-Ponty's move, Shannon's rat, and Munger's checklist of biases are all the same epistemological maneuver: replace self-report with external observation of the system, including when the system is you.