“If consciousness is, as it should be, an organized state of matter, we seem to be lacking an essential component to describe it. For comparison, a building has bricks and pumps and electrical currents controlled by on-off switches flowing through countless wires. It is a mechanical contraption, working firmly within a set of physical laws. We understand buildings, and can build and fix them because we know the underlying physical principles under which they operate. Likewise, it is plausible that we can build brain-like systems having different kinds of experiential awareness like seeing or hearing, and that respond to such stimuli with certain actions. Many robots already do this.”