I think I used the word 'user illusion' already. First there's what it feels like to be that system, second there's the re-description in language in such a way that the body, user illusion and narrative are integrated, in narrative.
The most detailed description I know of our body is the scientific one, and it is usually claimed to be proper knowledge. Unfortunately, this description doesn't seem to recognise the reality of what it feels like to be me.
Something has to give. What do you think?
EB
Science certainly does give the most detailed definition of our body and indeed brain. However, scientists are only ever in a position to experience, and thus to meaningfully talk about, their own experience. As good scientists would never generalise from a single case, their personal experience anecdotes are problematic to say the least. However,, as I stated earlier:
my claim is that the biological and the mental are the same thing seen from different perspectives.
Or at least, the sort of mental that Nagel and Chalmers is concerned with is. Meanwhile, as Wittgenstein pointed out, we actually lack any criteria for judging the ongoing accuracy of our experience anecdotes. The literature is replete with examples of how this can be problematic. When we have experiences in the Nagel sense, we make judgements in the Wittgenstein/Ryle/ Dennett sense about what we just experienced, judgements that conceptualise the previously non conceptual content or raw experience. These judgements are indefeasible in as much as how they seem but may well be clear nonsense as to how things are in the world.
However, I don't see why this is really a problem. As I already said, the reality of what it
feels like to be me is a function of what it is like to
be me, a point that Nagel has made beautifully and I note that you invoked earlier. So I'll repeat my earlier claim: what it feels like to be me is what it feels like to have the biology we have functioning in the way it does. This all gets pinned down and becomes publically accessible through behaviour and linguistic behaviour.
Science can't get a grip on some of that due to several methodological problems - the fact that only one person can ever be in the right place to make the observations is simply a practical problem while the fact that such observations can only be seen by science is clearly merely a methodological issue.
Likewise, there is traditionally no way of reconciling private personal experience with, on the one hand, biological states and processes and, on the other hand, behaviour, including linguistic behaviour. The best we can get is either earnest anecdotal claims which are exactly as reliable as earnest anecdotal claims can ever be, personal experience and tricky experiments designed to triangulate between input and output. That way behaviourism lies and behaviourism has always suffered from flying in the face of experience, just not the sort of experience one can include in science. As I already observed, there's only really a problem if one doesn't accept that mental states of this sort are no more and no less than what it feels like to be in those physical states and there's no more to say about that, at least for now. This would allow us to get on with the more interesting problem of how the brain does everything else.
So yeah, there's a problem, but science and philosophy working together can both predict and explain precisely what the problem is, precisely why it is about as mystical as the functioning of a flush toilet and really should just accept that there's a subset of stuff that science simply isn't designed to be able to talk about. Sure this give a gap that the desperate can fling their deities into, but that's a problem with the desperate, not with the gap.
So, for this aspect of consciousness my definition is simple and largely the same as Nagel: Consciousness is merely what it feels like for a brain to process information. This gives rise to the begining of a user illusion as there are states that can only be described as mental because they feel like something to be in that state. As I said before, this is no more mysterious than water being wet. it's an emergent property.
That's one side.