Originally posted by Mentat
I mostly agree (especially with that last statement). However, what if scientists wanted to undertake the explanation of consciousness, in a purely scientific manner? Then they wouldn't have to prove that matter really exists, since science already makes that assumption. They also wouldn't have to explain "why" such-and-such mechanisms produce consciousness. They'd just have to show "which" occurances are conscious and "how" to reproduce such occurances...right? [/B]
This raises a lot of issues. Firstly I'm not sure if science really does assume that matter exists. If matter is assumed to be reducible to 'something' (some quanta of matter or energy) then it exists. But this view is beginning to look a bit shaky. Science seems very close to concluding that everything is made out of 'void'. At the moment it prefers to think of this in terms of 'something' emerging from the void, but how can this be? To be honest I'm not at all sure what science does assume about the fundamental nature of matter these days. Is there an 'orthodox' view?
I agree that the 'why' question is not really scientific (although, being a non-believer, I can't quite understand why that that matters to anyone). However I do not understand how science is going to find the mechanism that produces something that it cannot detect. The idea seems paradoxical. In certain respects it can be done, since some induced brain changes produce roughly predictable and reproducible changes in conscious states. But can this approach explain consciousness? I don't think it can.
We've always known that sticking a pin in someone causes them to feel pain. Sticking an electrode in a brain to cause a feeling of heat, or redness, does not seem to move us on much.
Science accounts for most things in terms of other things. Gravity makes thing fall down and we can predict very precisely how they will fall. However this doesn't help explain gravity.
Also proving certain correlations between brain states and conscious states (possible only if we take the existence of those states on faith alone, by a trust in the subject's reports), does not help us cross the infamous 'explanatory gap'.
There is also some question as to whether the idea of 'neural correlates of consciousness, (or any other sort of correlates) really makes sense. A number of recent papers argue that the idea of NCC's is incoherent. (Or equivalently they argue that a coherent theory of NCC's cannot be scientific).
As you say earlier discussions about how to explain consciousness, or approach an explanation, in strictly scientific terms always seem to end inconclusively. I think we should start drawing conclusions from this.
Do you think we will sort it out scientifically in the end?