Hi Rav. I've read your posts and you have a point, I also wonder where the line is drawn between what is conscious and what is not. When have complexity reached a point where consciousness have emerged? I think, and I think you do too, that it fades with less complexity, until it finally vanishes at some point (at some complexity).
I don't think that it only has to do with complexity though, I think it has to do also with harmonics...kind of like music, in fact I think that a system in harmony with itself are self-experiencing in some way. What it takes for a system to be "in harmony" with itself is another question though, and there might be many flavours of harmony working together in yet a "higher" harmony to form a complete identity as in human consciousness, as such it does have to do with complexity
but it isn't the complexity that should be emphasized, but the
harmonics within that complexity.
The relevant part though (in this case), and the part where we disagree, is if consciousness is physical or not. You suggest that consciousness is entirely physical. I suggest that it is entirely non-physical. I will, of course, argue for
my view here;
Even though all the conscious phenomena (thoughts, sights, sounds, etc.) has a physical counterpart in the brain, it doesn't mean that consciousness is itself physical. You say that consciousness is
emergent from complex structures. But what is it that emerges? Is it something measurable that emerges from these structures that aren't a part of those structures themselves?
Emerging phenomena means that the whole is more than the sum of the parts. That the parts work together in such a complex way that the effect can't be described by only taking into account the individual parts that make it up. Usually emerging phenomena can be measured though, and the effects are in every way physical, it is simply too complex to give a good solution to them using only the individual parts. The brain, in respect to consciousness, doesn't give rise to any measureable phenomena though, in fact the only thing we
can measure in respect to the brain are the individual parts, no emerging phenomena can be measured. We only know that there is a emerging phenomena because we
are the phenomena, we feel it and we think it, yet the only evidence we have for it are the activities in the brain and our own word that we are, in fact, conscious beings. Science couldn't tell you that your neighbor are though, or that I am, for that matter.
I liked this;
"The ability to reduce everything to simple fundamental laws does not imply the ability to start from those laws and reconstruct the universe.The constructionist hypothesis breaks down when confronted with the twin difficulties of scale and complexity. At each level of complexity entirely new properties appear. Psychology is not applied biology, nor is biology applied chemistry. We can now see that the whole becomes not merely more, but very different from the sum of its parts." (Anderson 1972)
Emergence - Wikipedia
Perhaps we are a
higher form of physics? Or perhaps even higher
than physics?
Supervenience - Wikipedia - This was a good read, I recommend it!