I think it is still implausible because of the vast difference in scale between quantums and neurons, several orders of magnitude. Quantum effects don't manifes

I think it is still implausible because of the vast difference in scale between quantums and neurons, several orders of magnitude. Quantum effects don't manifest themselves on a macro-scale. I don't know precisely how quantum effects help our sense of smell or with photosynthesis as has been claimed, but I reckon it has to do with localized effects. The idea that quantum effects across the brain work in concert to create a single, global consciousness is quite a bit more far fetched, if not preposterous. But if you have a particular reference saying it's considered more plausible nowadays I'd love to hear about it.