I'm afraid I have some difficulties getting interested in a debate about the reality of reality. I can, maybe, consider the possibility of the world being an illusion. I guess I know, on an purely theoretical level, that the world I perceive is only a construction of my own brain, not the "real" world. But I don't really "believe" it, deep down. And I would tend to agree with the theory that nobody really can, although I'm getting on a dangerous ground here, because what can I really know of what others sense, feel or think?
If we go at this from Pascal's point of view, I am sure I exist, because I think that I do, so there is something somewhere (let's call it "me" for simplicity's sake) that exists to think that I exist. As for the rest of the universe, if I really invented all this, all I can say is... wow! What an imagination!
