The problem is how any subjective experience relates to the physics of the particles that make up our brains.
I feel hungry and so I eat. But how did that feeling cause the result? My brain particles would have done the same thing (because physics) even if I were an unconscious zombie.
I feel hungry and so I eat. But how did that feeling cause the result? My brain particles would have done the same thing (because physics) even if I were an unconscious zombie.