"Fire and Ice" Some say the world will end in fire, Some say in ice. From what I've tasted of desire I hold with those who favor fire. But if it had to perish twice, I think I know enough of hate To say that for destruction ice Is also great And would suffice. -Robert Frost
We interact with a world of physical objects, but these are really just electrical signals being interpreted by the brain. At the smallest and most fundamental scales of nature, the idea of “physical reality” is non-existent.