>The starting idea is that there can be no definition of existence

Yea, I don't subscribe to this line of thinking as consciousness had to happen before existence. Kinda messy when you think about it.

>Consciousness could also be something that evolution found a way to tap into.

This, at least how it's written makes consciousness something like the electromagnetic field that exists everywhere. For example if I said "If you want to fly, you need to oscillate the flying field". Most scientists are going to give you a hold up and state it doesn't work that way. They'll tell you that you need an atmosphere and a body capable of generating force to create lift. It's not like a magnet that jiggles a field that exists everywhere in spacetime.

Looking at flying is fun in itself... do fish fly in the water? At what viscosity does flying become swimming. Sorties paradox creates lot of issues in different places, especially the discussion of consciousness.