“What we see of the real world is not the unvarnished world but a model of the world, regulated and adjusted by sense data, but constructed so it’s useful for dealing with the real world. Middle World — the range of sizes and speeds which we have evolved to feel intuitively comfortable with –is a bit like the narrow range of the electromagnetic spectrum that we see as light of various colours. We’re blind to all frequencies outside that, unless we use instruments to help us. Middle World is the narrow range of reality which we judge to be normal, as opposed to the queerness of the very small, the very large and the very fast.”
dawkins 'middle world' rumination on 'umwelt'