Forrest J. Ackerman
wrote not just the shortest science fiction story ever
, but what may be the shortest SF
(if you ignore the title
). The title is "Cosmic Report Card
: Earth." The story is:
For this he was paid $100 for the initial sale, as well as for four more sales, so he was paid (he estimates) at a nominal $500 per word per sale, or $2500 per word for all five. Not bad for a night's work, especially in 1973.
Source: Mimosa 16, pp. 4-6