please tell me the most obscure joke you know

(feel free to explain or not explain it, depending on what you find more amusing to think of me reading it)

@whitequark Q: What's an anagram of Banach-Tarsky?

A: Banach-Tarsky Banach-Tarsky.

@ljrk @whitequark

This is legit one of my favourite jokes, for its unbeatable ratio of knowledge required to humour contained.

@passenger @whitequark Same! I do get a lot of enjoyment out of jokes that require far too much of an explanation to be fun :'D

@passenger @whitequark Mind The Gap!

... between required knowledge and humour.