While I credit @cstross for the link, I believe this is worth more than the original “WHAT” that he quoted it with.
It worth saying:
“WHAT ON EARTH?!!!!"
(Also, this is very programmer-nerdy and involves a program with 4.2bn if statements and a 40GB even/odd number function)
https://andreasjhkarlsson.github.io//jekyll/update/2023/12/27/4-billion-if-statements.html