Kevin,
If you think you understand this discussion, please respond to post #836.
Okay.
Previously I pointed out where you had pulled a fast one in your "proof" that physicalism could not possibly be true. In post #836 you appear to be trying to salvage your "proof" by backtracking and creating some
purely terminological confusion about the P1 and P2 we established earlier.
One of your two claims is that physicalists want to use "physical" to refer to two different things. Well done, Sherlock. If you're a physicalist, physical refers to an astronomically large number of differentiable things. That is not a problem, nor is it a problem if someone conflates brains, apples and oranges as all being physical if they are a physicalist.
Your other claim is that "subjective experience" is undefined (or undefinable) in physicalism, which is just false. You can define it as the physical processes that are going on when a being has experiences.
You might try to claim at this point that I am being circular, but nothing of the sort is going on. To pop your "proof" all we need are
consistent ways of interpreting P1 and P2 in physicalist terms, to falsify the claim that there are no such consistent ways of interpreting them. We don't even need to show that these interpretations might be true, since all we are doing at the moment is showing that they are not internally contradictory.
None of this matters at all outside the context of refuting your proof, of course. This is just mental exercise. You can fiddle with the labels all day and it does not make any difference to the underlying reality, if any.
This terminological obfuscation is indeed a symptom of a problem. The problem is that you are trying to defend an indefensible position, neutral monism. To be a neutral monist you first have to believe that there is reason to be an immaterialist or dualist (ideas long since put in the trash can), and then take a further leap into the land of nonsense by postulating an unnecessary entity you have no evidence for as the "underlying reality" which "explains" both material and immaterial phenomena.
This being a skeptical forum, every time you try to make your leap into the land of nonsense somebody grabs your shirt tails and says "Hang on there son, where is this evidence for immaterial stuff?". Your only response is to just keep asserting that any explanation of mental experiences which
doesn't covertly assume an immaterial component to them is "begging the question", which is nonsense. Nobody is assuming
a priori that there is no immaterial component to consciousness, we just want to see some evidence before we give the idea the time of day.
Fiddling furiously with the labels we put on our mental experiences, or on physical objects, is simply never going to give rise to such evidence. They are just labels.
If I were you I would retreat back into mysticism at this point, and just declare that your arguments make perfect sense to illuminated adepts who have communed sufficiently with Husserl. At least that claim is unfalsifiable, unlike your other ones.