Discussions of passing are cursed here, because to some troons it can mean "getting "correctly" gendered out of nothing but niceness" and to some kiwis it means "being identical to a bio-person of their desired gender while naked under scrutiny and a strong light" (which is never ever ever gonna happen)
Neither work because passing is contextual and the whole thing is a spectrum. Someone can pass, as it's not always that hard to get confused for a couple of seconds with the other sex by a distracted person. It won't happen to that guy the football captain desperatly tried to recruit because he is naturally huge, but it can happen to his friend. All you need is, for exemple, to be a skinny soft-skinned dude with somewhat decent long hair or a tall, short-haired woman wearing a big coat and no jewelry. A lot of people are just not paying attention. And if you are committed and lucky you can extend that second of confusion to hours with hormones, voice training, proper clothing, and cultivating your facial hair (or lack of)... it does change things tho it's really depends on the person, some have already some androgyny in their bone structure, some absolutely don't. Even if there's only two sexes, and we are sexually dimorphic, we are not as sexually dimorphic as many other apes, and a lot of aspects kind of trickles down to both gender...
Anybody who think they clocked 100% of the troons they have been in the presence of is the sheltered one, especially since i gather from some comments on subjects like plastic surgery that a lot of people have some level of face-blindness or at least are really not visually-oriented. You maybe didn't went to the beach with a troon and didn't notice, but you could ride the bus with troons and not notice. And i am not talking just about the early transitioners who started blockers at 12 and hormones at 16. Obviously not all trans are like the ones who are posted here.
It's actually a bit of a shame that the subject is so misunderstood, because it is fascinating.
Being in the presence of one mostly passing trans persons, is actually a really curious experience, as your perception of the person flickers like a light-bulb. Some aspects you were not aware of immediately can suddenly jump at you, and then fade again... for example they were firmly into one gender category, then you noticed the hands, or their voice drop or crack, and suddenly you see them as the other category, seemingly without beng able to unsee it... but then you stop watching the hands, they try a little harder on the voice, and it gets a little bit better.
And it involves a lot of dumb luck because some have a decent chance of passing steadily and for others it's gonna be an uphill battle.
I actually understand to some extend why there's so much paranoia over minor social interactions in the community because i think they are aware of how fragile it can be. But in short, those trans people are the real non-binary ones, they have experience from both side and from neither.
Edit: I knew That comment would be controversial but still, a great litmus test
