I don't think the average person is very aware. You've all probably heard of that psych study about the gorilla
And also another one where people even changed when the same person was there and didn't notice a different person was talking to them!
It's weird because you think we would have evolved to notice more stuff like this..
I have ADHD. In a way.. I think this makes me more aware because I'm paying attention to everything in the big picture all at once instead of just one piece of it.
It's weird when you realize you're alive. Like, do you ever get that feeling? You realize all of a sudden, holy crap... I am this entity, this being, who is presently staring at another screen in another universe connecting with people I don't even know through a virtual box? Like.. it's nuts! lol