In a conversation today with my friend Bram, a really smart cosmologist, I suggested that maybe the universe is just the output of a software error in a high dimensional program — basically it’s just a big bug! The owner of the computer could at any time detect the bug and simply reboot — that will be the end of it for us! But Bram one-upped me by suggesting that instead the universe is a screensaver. Funny thought. I wonder whose screensaver it is? Are they just out to lunch? Do you think it’s running on a Windows or Linux box, or a Mac?