OTOH: 1) Most of the time GUIs use OOP, and its the "other designs" which have a hard time being successful. 2) The rejection of multiple dispatch is very "ha

OTOH: 1) Most of the time GUIs use OOP, and its the "other designs" which have a hard time being successful. 2) The rejection of multiple dispatch is very "hand wavy", a lot of Julia's success is linked to its multiple dispatch feature.