Yes, that would be a physicalist causal explanation. To be generous, we could say that the making-sense part is more than coincidental -- that it is what happens, from our 1st person perspective, when the described brain events take place, accounting for the utility of the whole process.
As I think I said somewhere in the OP, if one believes that's the only way in which the idea of causality can be used, then there's really nothing in the OP questions that are worth considering.
Thanks. I didn't go on to read all 7 pages of the thread, so this may have been said already (and maybe by me!) but I'll say it anyway, since this is a different thread.
Property dualism, or something very like it, is what supervenience proposes, it seems to me. If brain and mind are to be understood as "the same thing" (and I'll come back to that troublesome terminology), we need to be able to say how they nonetheless (appear to) differ so dramatically. Property dualism says that "the same thing" can have different properties, depending upon the perspective of the perceiver. A brain, viewed from the outside, has physical properties. A brain, viewed or experienced from the inside, has mental properties. Some versions of property dualism (I think including yours) go on to say that these are actual objective properties which can be discovered using 3rd person inquiry.
I like this perspective because it cuts the knot of what-causes-what, and it doesn’t claim that consciousness is forever a mystery, inaccessible to objective investigation. Yes, it requires the
postulate of consciousness, and a 1st person perspective, in order to get off the ground, but that’s a postulate I’m happy to accept.
The idea that proto-consciousness may turn out to be a property of matter, supporting a modest version of panpsychism, seems quite possible. It’s sheer speculation at this point. But it’s no more unwarranted than vague references to “emergent properties.”
My objections begin with the attempt to widen the terms “consciousness” and “experience” to include, say, photons. I think Chalmers is way off track when he says that a proton has “a degree” of consciousness. Might it be proto-conscious, in your sense of having a property that, when scaled up, can result in consciousness? Sure. But that just isn’t “a degree of consciousness,” any more than five or ten atoms have “a degree of liquidity.”
Likewise with “experiences.” We can insist on a reform of how to use that word, so that all material entities can now have them, but that’s arbitrary. If the word is used at all, it refers to events that can be perceived “from the inside,” and the constituents of your rock can’t do this. There are indeed “instantaneous, memory-less moments” involving the rock-particles, but the particles aren’t experiencing them. Or putting it differently: If you want to reform “experience” to include what particles can do, you need to explain what part of the concept of “experience” is being carried over, such that it can justify continuing to use the term.
Lastly . . . we should definitely come up with something better than “the same thing.” It’s a tempting, often useful locution, which I frequently fall back on, but I worry that too often it paints the wrong picture. In one sense, as we’ve already noted, it’s ludicrous to say my mental image of a purple cow and a particular set of neurons firing in my brain are the same thing. That can’t be what we mean when we claim some sort of identity between the two phenomena. What is
the same here is what supervenience (and perhaps property dualism) is trying to capture.
We need the concept of “perspective” or “point of view” in order to understand it. From your perspective, having been kept in the dark for two days, a flaring match looks painfully bright. From mine, standing in the sunlight and looking in a window at your match, it’s so dim it’s hard to see. So, does the match have the property of brightness? Obviously, that depends. With 1st and 3rd person, the perspective shift is much more radical. A match, at least, “translates” in visual images and metaphors, but there’s no translation language (yet) between brain and mind. Still, this can help us understand how there might be a “same thing” underlying these two points of view. Or we can use my football-game analogy.
Maybe instead of “the same thing” we should say “the same essent”. I’m not fond of Heideggerian terminology, but this one (I think invented by Mannheim to translate
seiend in the lectures on metaphysics) is close to what we want. We could stipulate that an essent is an item that exists, but stripped of perspective. Heidegger might be outraged at putting it this way, but I want a word we can use that acknowledges that there is a level of being beneath or beyond perspective. So brain and mind share the same essent.