Quantum consciousness...

[bennyboy]

"If it;s not binary it must be quantum"

Um, no?  Classic non-sequitur.  In any case, if you're asking that question, and you want a binary answer...one thing you won't be able to escape is that the only places we have any indication of consciousness from, whatsoever, are far above the quantum level.  We don;t see any indication of it in the microscopic, at the level of individal atoms..or of cells made of many atoms, or in simple multi-cellular life, or in complex organ and organelle based life -sans- a cns.  Or, even, uniformly, in complex multicellular organ based life -with- a cns.  It's not just a little bit above the quantum level that we have indications of consciousness, it;s far....far....faaaaaaaaaaar "above" it.

It's not, by any reckoning, that the various interactions and properties at each level "below" have no effect or aren;t in some way operative or fundamental to the end result - simply that the subject "x" -for whatever reason, does not manifest itself as a phenomena until -at least- a particular point in this hierarchy.  Thus, to say that consciousness is ":quantum" or "atomic" or "a function of cells" or "of multicellular life", or of "systemic complexity", or even "of a central nervous system" are all true, but only trivially so.

This is why productive theories of consciousness explicitly reference specified complexities at a particular point in the hierachy and present in an individual representative.

If consciousness is an emergent property, then there is a minimal physical system or process at which it emerges.  There is necessarily some level of organization at which there is consciousness, when at any other more primitive level, there could not be said to be consciousness.

If it is not an emergent property, then it is intrinsic to the Universe, or to something in it, not by any level of organization but right at the root.  That would be quantum mechanics, at least so far as we know now.

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If it's not binary, then it must extend down into the quantum world.

No. It could extend down to a collection of interacting cells but no further.

What evidence is there to assume that the brain uses quantum effects?

I didn't say the brain "uses quantum effects," I think, although I'm willing to look at that issue-- certainly the OP video expressly discusses that, but I'm not sure I'd view it in that way.  So at least right now, I wouldn't pretend to be able to produce evidence of that.

Anyway, if consciousness extends down to a minimal system of organization-- say, an individual neuron which can input information from the environment and output a new pattern of information which is mapped to a simple tail's muscle fiber, then it's binary.  Either you DO have that level of organization in place, and have consciousness, or you DO NOT have that level of organization in place, and do not have consciousness.