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xkcd 927 - How Standards Proliferate
(See: A/C chargers, character encodings, instant messaging, etc.)
Situation: There are 14 competing standards.
Cueball and Ponytail stand facing each other:
Cueball: 14?! Ridiculous! We need to develop one universal standard that covers everyone’s use cases.
Ponytail: Yeah!
Soon: Situation: we did it our standard beat all the other ones and is universal yay :D


Well, 6 physical substandards, with 3 in “current usage” and 3 “deprecated” ones…