Mind, Matter And Materialism: If mind rests on matter, this must include admitting just how murky our understanding of matter is at the deepest levels. Our job in thinking about the world is to distinguish what science has actually found out about the world from the metaphysical commitments for which the findings of science are often mistaken. We all have metaphysical commitments. But when it comes to quantum physics and what it tell us about matter and materialism, we must work hard to distinguish what’s solid ground and what is swamp.