the more conscious you are, the more stable the physics is.

That is very interesting. I never really thought about it like that but I see your point. I once had a very lucid dream in which I was flying. I had previously set the intention to fly into space prior to going to sleep. In my dream, when it came time to cross the threshold into space I became afraid and unable to push myself further. This was because going into space in normal reality would lead to death and because the dream felt real I was uncertain if I would die in my dream if I continued on. In regards to your theory - the fact that i could fly suggests that I wasn't fully conscious, but the fact that I was afraid may suggest that I was quite conscious. That gives me something to think about :)