[mosaicwolf]

I say nothing is real. Everything is an illusion; a projection of the mind. (Read: Ego) Math to back it up? Don’t need that pesky mathematics when one knows. :-)

[ZX12R]

I say nothing is real.

In a way, that is essentially what the copenhagen interpretation says. That there is no deep reality, at least not one that human beings could understand. Everything exists on a cloud of potentials, which is not a real thing.