I don't think anyone is saying that we have a scientific explanation in the sense of a full accounting for everything we call consciousness.
You're not making such a claim. Other individuals (most notably
PixyMisa) have made such claims.
It's just that some people think we need some new physics and some people don't.
If it were just a discussion of whether or not consciousness is a feature of known physics or some physics altogether different I'd not be taking exception. Its the fact that some here seem genuinely unable to distinguish between computer science and physics thats got my gourd inna discord.
But I still think you're being a bit too cavalier. Without a precise description of qualia and consciousness and what-not, in terms of exactly which bits of my inner behavior/experience we're talking about, it's too easy to blow it up into a hard problem of consciousness. There may indeed be a hard problem, but I don't think that appeal to complexity or appeal to incredulity is all that compelling.
Its not so much that I'm incredulous to the explanations being proposed here. Its the fact that the supposed "explanations" deftly sidestep the central issue entirely, while at the same time alleging to have resolved it.
In other words, our lack of ability to describe what we mean by qualia may be the leading component of its apparent complexity.
~~ Paul
The point of me elaborating and philosophizing about qualia is to try to cut thru the apparent complexity of the issue and down to the basics. The higher order cognitive processes we carry out as humans
[such as complex language, planning, art, adaptive learning, etc.] are all off-shots of the more fundamental question of subjective experience. For all we know, a creature as simple as a nematode may be conscious. So, no; I don't think consciousness is necessarily based upon complexity. Below is a general rundown of what I mean by "consciousness" and how I understand the concept:
Minds are the subjects that experience. To the best of our knowledge, they are the product of neural processes
[tho, conceivably, the mind could be the product of some more general cellular processes]. Minds are what inhere mental properties
[like volition, intention, attention etc.] and mental objects
[like memories, "memes", etc.].
Consciousness, on the other hand, is a state of the mind, during which, it has the active capacity to be aware and experience information as subjective qualities. What the subject is aware of, at any given moment, is the focus of their conscious mental activity
[i.e. their attention]. Information at the center of one's awareness they are most conscious of, and information more peripheral to the center of awareness they are less conscious of. Information and mental processes completely out of ones awareness are unconscious.
The basic element of conscious information is a
quale. These include simple positive
[e.g. pleasure] and negative
[e.g. pain] subjective qualities, and the broad spectrum of other subjective variations that make up an individual's conscious experience. To put it simply, qualia are the quanta of conscious experience.
Keep in mind that the above is not meant as an explanation of consciousness, but as a schematic description of what can be observed about it via introspection. A sufficient theory of conscious, IMO, would provide a means of explaining how the above relates to the externally observed physical activity of the brain/body. In principle, such knowledge could then be used to design systems with the physical capacity for consciousness and provide a means of specifying the type and quality of it's conscious experience(s).