You know how the chicken sexers do their thing, but can't explain it? Like they can't write a list of things they check for. And when they want to train new people they have them watch (apprentice style) the current ones, and eventually they also become good at doing it themselves?

It's basically that. I can't explain it (I tried listing the tells in a comment below), but it's not just a list of things you notice. You notice the whole message, the cadence, the phrases that "add nothing". You play with enough models, you see enough generations and you start to "see it".

If you'd like to check for yourself, check that user's comment history. It will become apparent after a few messages. They all have these tells. I don't know how else to explain it, but it's there.

> You know how the chicken sexers

That's certainly a novel and confusing entry in my search history.