LGBTAIitp Part 60: Still Going Strong

[Lycunadari]

Presumably, that it can't be detected, even indirectly, with the mind or senses. I don't know for sure if that's the sense they meant it in, but I also can't think of any other potential meaning.

To be clear: I wasn't asserting that gender is unobservable; I was expressing befuddlement that Purple Eagle's link defined it that way.

Ah, I think there's just a misunderstanding/confusion about the word then. I haven't written that website, obviously, but I think they meant "unobservable" just as a fancy synonym of "invisible" and not as "literally cannot be noticed by anyone in any way", considering they use it to differentiate it from phenotype, which is mostly visible.

(dictionary.com defines "observable" as "capable of being or liable to be observed; noticeable; visible; discernible")