On the one hand we agree that the sense of self is, to its subject, a datum. On the other hand we could scarcely be further apart as to its source.
I'm content that reasoned research is continually enlarging our understanding of brain function. I note that so far it discloses nothing at all, zero, unrelieved absence, that might suggest that "self is infinite sea of unborn, unformed, uncreated awareness and individuals are as if waves of that sea" is an accurate statement about reality.
How exactly do you say "unformed, uncreated awareness" can be independent of its own underlying mechanism?
Or do you say it works by magic?
3 should read,
Therefore, adding that to a great deal of examinable evidence about brain function from scientific research (a great deal of which was not available to enquirers before the 1990s), we can conclude that the brain is the only known source of consciousness.
Obviously therefore consciousness was dependent on the brain and ceases to exist when brain function ceases to exist.
The materialist holds that there is only matter / mass-energy. So the materialist holds that matter/mass-energy is the subject and the object of motion. But how can a car, which is matter/mass-energy, move itself? It is like claiming matter is independent of matter. And how can an autonomous car choose its own destination, and proceed there choosing its own course and constantly making decisions, since it is not conscious?
We would on the contrary have to conclude that we do that all day every day, by sensory input to the brain by well-described processes.
And while consciousness is limited in its access to the workings of the nonconscious brain, we can study the nonconscious brain, and do, accumulating understanding via scientific method aided by modern tools, and developing more and more exact descriptions of brain functions and their biochemistry.
Why? Consciousness is one aspect of our ability to respond to sensory input. It isn't the same thing as sensory input. The computer and the keyboard are not the same class of thing.
Do you mean that our sense organs can report to us about our body? For some purposes they can, for others they can't.
Yes, the sense of self includes the feeling of being inside looking out. That's completely consistent with the brain being the seat of consciousness, awareness.
No, it's simply sometimes the case that some dreams, particularly waking dreams, are noted by our awareness, and sometimes they're not. But dreams are wholly internal, artifacts of brain function, as various clues eg REM show. Nothing suggests otherwise.
No, but it's correct that the brain is compartmentalized, as our more and more exact brain-mapping research shows. Things can happen in one part of the brain that the consciousness isn't aware of ─ a far far more usual state than self-awareness regarding brain function. I go back to my old example, where are these words I'm typing in the quarter-second before I type them, where are the words I speak in the quarter-second before I say them, because they're not in my consciousness ─ How do I know what I think till I hear what I say? as Auden famously put it. And as for compartmentalization, our forebrain editor is at work in both cases, censoring, doing last-instant intercepts and imposing amendments. (And this ability can be lost through forebrain physical injury, particularly countercoup injuries.)