Billy is spastic in time, has no control over where he is going next, and the trips aren’t necessarily fun. He is in a constant state of stage fright, he says, because he never knows what part of his life he is going to have to act in next.
All moments, past, present, and future, always have existed, always will exist. The Tralfamadorians can look at all the different moments just the way we can look at a stretch of the Rocky Mountains, for instance.
His attention began to swing grandly through the full arc of his life, passing into death, which was violet light. There wasn’t anybody else there, or any thing. There was just violet light—and a hum. And then Billy swung into life again, going backwards until he was in pre-birth, which was red light and bubbling sounds.