Comment by ndr

While I agree that DSM is likely a bunch of nonsense:

> As long as they don’t provide physical mechanisms for disorders, it’s worthless

This reasoning will dismiss too many things.

We don't know the physics of almost anything, it's all progressive levels of approximation.

For the longest time we knew nothing about the physical mechanisms of anesthetics, or how a plane wing works.

Science doesn't need the mechanism. It needs predictive power. Observations, hypotheses, tests and thesis.