“I believe that time is like a train, with men hanging out in front of the engine and off the back of the caboose; the man in front is laying down new tracks the moment before the train touches them and the man in the caboose is tearing up the rails the moment they are passed. There is no linear continuation: The past disappears, the future is unimagined, and the present is ephemeral. It cannot be traversed.”
