[bitwize]

It's not about em dashes. It's not about particular turns of phrase. It's about getting the whole picture.

Seriously the biggest tell for AI writing is "eighth grade essay syndrome". You know how an eighth grader writes an essay and they don't have enough original thought to fill up the word count so they pad it out with impressive sounding bloviation and dramatic language, often repeating key points or rephrasing them in a more long-winded way? AI does that on its default settings, probably because it's been trained on a lot of posts from StalkedIn douchebags who never matured beyond that level of writing. It's a reliable sniff test even when the AI has been prompted to avoid the usual obvious tells. Except if you're reading StalkedIn posts. Then it's just how people write.