The Total Perspective Vortex is allegedly the most horrible torture device to which a sentient being can be subjected.
When you are put into the Vortex you are given just one momentary glimpse of the entire unimaginable infinity of creation, and somewhere in it there's a tiny little speck, a microscopic dot on a microscopic dot, which says, "You are here."
https://en.wikipedia.org/wiki/Technology_in_The_Hitchhiker%2...