1. Correlation is not evidence of causation.
Well, evidence, but not conclusive evidence. Other patternns of causation need to be considered.
2. Correlation may suggest causation when the categories are same. So brain states may indicate tissue damage but does not explain why there is pain. In short, there is no correlate of consciousness and there is no causal explanation to bridge the gap between a physical effect (brain state) and subjective experience of pain.
When two types of events are consistently correlated, both in location and time, it is reasonable to conclude that they are simply different aspects of the same phenomenon.
In this case, the brain state that is caused by tissue damage *is* the feeling of pain. Every time that brain state occurs, the subject reports pain. If there is tissue damage, but there is an anesthetic, there is no correlate brain state and also no pain.
At some point it becomes silly to say they are even different phenomena.
3. There is no actual subjective experience in the third party records.
What does that even mean? There are reports of such subjective experiences and those reports correlate to the brain states.
It does not explain why a dead brain has no self sense. Invoking some unknown mechanism cannot help you.
Of course it does. If the brain is dead, there is no neural fire. If there is no neural fire, there is no *pattern* of neural fire. And, since *experiences* are such patterns there is no experience and no consciousness.
You have not answered why a brain in your body is compelled to respond. Is there a willful person there?
It follows the laws of physics. The sensory data coming in (light, sounds, taste, etc) interact *physically* with the receptors, which generate nerve signals, which are transmitted to the brain, which is, itself, a collection of nerves, so the nerves in the brain respond to the signals coming in. That evaluation is 'programmed' by evolution to produce signals that stimulate motor neurons to act in ways appropriate for survival.
Now, the brain is a *massively* parallel processor, so *at the same time*, other parts of the brain are interpreting these signals for relevance to plans, to emotions, and to anything else that might be relevant.
Let a dead brain say so.
Sorry, but you need to have patterns of neural firing to get consciousness. That is what *all* the data show.
In short, correlation of brain states to bodily states does not close the causal gap between 'CONSCIOUSNESS' and the physical changes in brain.
I don't see it as a 'causal gap'. I see the two as different sides of exactly the same phenomenon: one as the brain itself interprets its own state and one for the information available externally.