Going back where? Would I go back from JS to Ruby. Without even thinking. Would I go back from JS to Swift? Without the shadow of the doubt. Would I go from JS

Going back where? Would I go back from JS to Ruby. Without even thinking. Would I go back from JS to Swift? Without the shadow of the doubt. Would I go from JS to Perl? Probably not. But I am sure plenty others would. My quantum mechanics professor told us that "you cannot understand QM, but you can get used to it". Something along these lines applies to JS as well though I am not sure what word should replace "understand".