Years after I'd seen him for the last time I found myself thinking of him unexpectedly and often. You know how certain places grow powerful in the mind with passing time. In those early morning dreams when I come back to bed after a sleepy pee and fall quickly into the narrow end of the night, there is one set of streets I keep returning to, one dim mist of railroad rooms and certain figures reappear, borderline ghosts.
Don DeLilloWe feel certain that the extraterrestrial message is a mathematical code of some kind. Probably a number code. Mathematics is the one language we might conceivably have in common with other forms of intelligent life in the universe. As I understand it, there is no reality more independent of our perception and more true to itself than mathematical reality.
Don DeLillo