Quantum realism isn’t The Matrix, where the other world making ours was also physical. Nor is it a brain-in-a-vat idea, as this virtuality was in play long before humans came along. Nor is it that a phantom other world modifies ours—our physical world is the phantom. In physical realism, the quantum world is impossible, but in quantum realism the physical world is impossible—unless it is a virtual reality—as these examples demonstrate.
via 10 Reasons Why Our Universe Is A Virtual Reality – Listverse.