How Short Can A Very Short Story Be?

Krulwich Wonders… : “…Very short stories can get very, very short and still be good. The most famous example (supposedly written by Ernest Hemingway) draws a little sigh with only six words; it’s a sales ad.

‘For sale:

baby shoes,

never worn.’

Nobody has been able to beat that one, at least nobody I’ve read,…

But I’ve seen stories that are way richer, and much, much shorter, if we’re counting words. They use no words at all…” (via NPR).