What is Reality?

[Zaknafien]

it has nothing to do with "man". quantum physics is all about the "observer". If there's no observer, does it exist? when you turn your head away from the window so you cant see outside, does it cease to exist because you can't percieve it? whats in your brain, and what is not? its very fascinating stuff.

[Husar]

I think that in reality, there is just me, and all this here is a long dream, thus all of you aren't real. Makes me wonder why I keep talking to you, I'm probably a bit insane because in the end, I'm talking to my own conscious, if we can agree(or rather I can agree with myself) that I am a being with a conscious.
If only I'd wake up now, I could interpret this dream from a realistic viewpoint, but somehow I'm stuck here...