This planet has — or rather had — a problem, which was this: most of the people living on it were unhappy for pretty much of the time.

Many solutions were suggested for this problem, but most of these were largely concerned with the movements of small green pieces of paper, which is odd because on the whole it wasn’t the small green pieces of paper that were unhappy.

- Douglas Adams, Hitchhiker’s Guide to the Galaxy, 1978

I liked the previous version (“trade shiny pieces of metal until you die”) marginally better. At least they couldn’t easily fuck with the supply that way.

It beats banging rocks together, if you ask me.