The Importance of Symbols in Reality

"Space time, three-dimensional space as you perceive it right now, is just your desktop," he says. "Physical objects like tables and chairs, the sun and the moon, are just icons that are in the desktop." They don't resemble objective reality; they're just symbols to let us interact with whatever objective reality is while we're completely ignorant about its nature. 'It would be beyond impossible for any mere mortal to do the manipulations necessary within the memory of the computer'