You should probably check those notes again. I'm saying that one of the easiest and probably most effective responses to this by publishers is to only use known

You should probably check those notes again. I'm saying that one of the easiest and probably most effective responses to this by publishers is to only use known sources e.g. existing authors and people they can vouch for. This would put up a massive barrier for AI-generated books, yes - as intended. But also puts up a massive, massive barrier for finding new _real_ authors, who don't have the connections and might have previously actually had a chance of being published.