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This sentence construction ("It's not just this — it's that") has become so common in AI-generated writing that it's no longer just a clue that a piece of writing may be synthetic — it's almost a guarantee.

techcrunch.comIt's not just one thing — it's another thing | TechCrunchThis sentence construction ("It's not just this — it's that") has become so common in AI-generated writing that it's no longer just a clue that a piece of writing may be synthetic — it's almost a guarantee.

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Do you know why people began to associate em-dashes with LLM "writing"? Because LLMs don't actually write anything, they regurgitate - and one of the things they regurgitate is writing by human beings who used em-dashes. Same applies to sentence constructions.

Far from the first time, calling anything "almost a guarantee" that something was written by an "AI" is deeply irresponsible. LLMs imitate corpus, and if they use a given construction it's because it was in the human-written texts scraped to train them.

AI-generated fiction doesn't use that exact construction as often. Instead, it uses the somewhat similar "He didn't do the thing. Instead, he did another thing.".

Someone on facebook was complaining about this because “academics, essayists, and advertisers use that formation all the time!” But that’s exactly why it’s such a tell. Real people generally don’t write social media posts the same way they write ad copy, but AI does.