"I know where I came from, but where did all you zombies come from?"
"—All You Zombies—" (1959) is a short story by Robert A. Heinlein
that presents to the reader an interesting time paradox. "The Unwed Mother", as a bar patron calls himself, unloads his life story onto a willing barman. The barman, however, knows more about The Unwed Mother than he could ever guess.
At roughly a dozen pages, "—All You Zombies—" provides a provocative story and incorporates many of Heinlein's favorite themes.
A film adaptation called Predestination
, starring Ethan Hawke and Sarah Snook, was released in 2014.As the story contains a twist ending, it is recommended you read it for yourself before reading the associated tropes.
This short story provides examples of: