Bumping this thread as I want to express some thoughts about the subject and get some more interesting perspectives from you intelligent people!
On the question "What is consciousness"... I'm going to drop lots of questions down below.
Let's assume the brain creates consciousness. How does it do that? Brain activity. Is it the flow of electrons in the brain, or flow of information? If it's electrons, is consciousness made out of electromagnetism? Is the complex interconnectivity creating a specific flow of electrons, almost like a new state of matter, resulting in consciousness? If it's the flow of information, would consciousness arise with brain activity consisting of other particles and forces rather than electrons and electromagnetism? Or even, imagine a huge brain where there was an identical flow of information, but instead of electrons, the flow of information was transmitted with apples. Would that brain be conscious, or would it just be a mechanic simulation? Does it have to be this complex interconnected flow, or could it be any flow? Is the internet conscious? Could the flow of electrons in a computer be conscious? The flow of electrons in a worms brain? The flow of electrons in a lightning bolt? The flow of the electrons in the universe? The flow of one electron? Is consciousness in our brain the sum of the individual hypothetical "quantum consciousness" of each electron?
Electrons are just waves in the electromagnetic field, right? Then what is brain activity? A very complex interconnected vibration in the electromagnetic field. That might lead one to reason that consciousness is there as a fundamental feature of the universe, in the same way as temperature is? Steer it up, you will have an increase in temperature. Steer it up, perhaps in the right way, and you will have an increase in consciousness. But yet again, why would the electromagnetic field be special.
There are of course neurological facts that might answer some of these questions rather quickly... like why is the sleeping brain not conscious while it has lots of activity going on...
I wonder if technology like Neuralink might begin to answer some of the questions about consciousness. Because with Neuralink we can have brain to brain connection. If you view consciousness as two clouds, would the clouds begin to bridge?
Another thing I wonder, do you think physics will come to a point where it cannot progress any further without adressing consciousness? Or that adding consciousness to the equation at least might open up new areas in physics? If consciousness is a fundamental part of the universe, then I suspect that the "equation of everything" might need to address is as well?
Hope I brought something interesting to the table!