 Originally Posted by Sandform
Zoto I know you already stated that you believe there are different levels of consciousness (flies vs. humans and the like) but could there be different kinds of consciousness? (In relevance to consciousness made via computer programming vs. consciousness via evolutionary standards)
Meanwhile your fly example makes me even more flipped out when I have to think about the idea of human beings. If a fly is less conscious than I then surely I am less conscious than some other human being. X.X Well... that is to say surely my highest lvl of consciousness so far is rested somewhere below another human beings highest level of consciousness.
Ah, different kinds of consciousness? Well I don't know. I feel it is hard enough to define my own consciousness, nevermind trying to think up a completely different kind, but yes, that is an interesting point!
Mm, I'm actually reading about computability right now, in a book called The Emperor's New Mind by physicist Roger Penrose, and it's pretty much exactly about this issue. I haven't finished that chapter yet but... ya, basically the book is arguing that the brain is uncomputational.
The thing is that physics is computatable, really. As far as I can see, if the brain is just a collection of molecules moving about in a classical, deterministic fashion, then it can be computed, allowing enough power. I think where Penrose is going then must be about quantum physics, but actually there's a big problem there because quantum theory doesn't have an impact on the scale of neurons as we understand them...
The whole polyworld thing sounds fascinating, I'll look it up after dinner. Are you actually employed in that field or is this personal research, by the way?
And yeh... so, I'm slightly lost here, you're saying that Turing machines can't make consciousness, but you're also a functionalist (AKA the process is what's vital)..? Those two views seem a little mutually exclusive?
Hmm, the whole quantum mechanics thing doesn't really take me in. We can be pretty sure for the most part that we all act deterministically, and since the brain is not a quantum machine (it is sufficiently macro- to just ignore QM altogether), I doubt it does have much impact. Furthermore, I don't think the weird behaviours of sub-atomic particles really have any effect on consciousness as a whole.
I'm not actually working in this field really, but I find it pretty fascinating. It's very fun to research and try to get to grips with, well, the very thing that is able to do understanding for me - my conscience, haha.
Your last point is a little mixed up. I do believe it's the process that matters. And by that I mean, I think it's a sort of specific type of process - not just any old process. The only reason I am forced to consider Turing machines is because of the fundamental process that lies behind them. After all, at the processors level, it is taking in inputs, processing and formatting these inputs, and then spitting them back out as something else. Not just any something else, but something else relevant. Not only that, but the process itself is 'complex' in the formal sense, so really, I can't say that it doesn't do exactly the same thing as the brain, but, perhaps just slightly differently.
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