Insanity

Insanity

(alt-text)

I looked up "insanity" in like 10 different dictionaries and none of them said anything like that. Neither did the DSM-4. But I'll keep looking. Maybe it's in the DSM-5!

What If? is now on YouTube!
Check out the first video for the answer to
“What if we aimed the Hubble Telescope at Earth?”
and follow xkcd’s What If? The Video Series channel to be notified about each new video.