Consciousness is a "hard problem" invented by theorists to drum up generalized support for international conferences on the nature of consciousness.
That tells us nothing about it.
Consciousness is caused by the collapse of the quantum wave function. Or maybe the collapse of the quantum wave function is caused by consciousness. Maybe both statements are true, because quantum mechanics is strange.
It is unlikely (though I admit not impossible) that consciousness has anything to do with quantum mechanics*. Several people have made some good headway into understanding some aspects of how it can emerge, where it emerges in the brain, and how such a thing can evolve...
without ever resorting to QM or collapsing wave functions, or anything like that. Read some books by Susan Blackmore, Antonio Damasio, and (to a lesser degree) Daniel Dennett, to find out more!
(* Except in the sense that QM is fundamental to physics. But, that's a trivial statement.)
Most of those who currently associate consciousness with QM are in the habit of merely making it sound
more mysterious, and not actually telling us anything about it.
Whatever happens it's at the Planck scale, which is so teeny-tiny that current consciousness theorists are probably safe from rigorous disproof of their hypotheses, which are continually being refined at international conferences.
This also tells us nothing about it. You're sweeping the problem under a rug. I think we can be more productive than that.
Consciousness is one of the many things that current science barely understands at all.
Science probably understands more than you realize. Not everything, true. But, I found it quite astounding just how much science already happens to know! Again, it's all there for anyone willing to read Susan Blackmore, Antonio Damasio, and (to a lesser degree) Daniel Dennett!
People who use the term "qualia" are mystics, who believe in magic. Crazy people, who hear voices in their heads.
I love Daniel Dennett, too! But, I also think there is a legitimate way to talk about qualia when it comes to consciousness, even if it is only modeled as an emergent behavior. I understand that disqualifying the qualia question is important to understand some of the deeper, more fundamental, aspects of the mind. But, one would have to be a
greedy reductionist to assume that means qualia means nothing at a more abstract, and higher level!