So there is a little quantum soul which is the consciousness of the brain. How does the soul get it's consciousness? I think the best attitude is that a. We ha

So there is a little quantum soul which is the consciousness of the brain. How does the soul get it's consciousness? I think the best attitude is that a. We have no clue what causes consciousness and b. it's probably much more widespread that we previously assumed. We assume that other humans, cats and sufficiently advanced AI are conscious based on observing behaviors similar to our own. But why should self awareness be tied to specific behavior? Why not a star self aware of being a star, without having any of the same senses, drives and capabilities as a human? At best we can assume is that some other animals/things might be self aware of similar occurrences as we are. As for quantum effects, if brain is able to leverage them in computation, that's an obvious evolutionary advantage. One obvious person of a brain is to simulate many possible potential actions and their real world outcomes. If it's able to use quantum states to model multiple scenarios simultaneously, that's quicker/more detailed modeling with less energy use. But as far as quantum effects causing consciousness, how could we possibly tell and what useful insights have we gained by making this assumption?