> maybe GPT5 had seen this or a similar construction somewhere in its training data

I'm disappointed that he didn't spend a little time checking if this was the case before publishing the blog post. Without GPT, would it really have taken "a week or two to try out ideas and search the literature", or would it just have taken an hour or so to find a paper that used this function? Just saying "I spent some time searching and couldn't find this exact function published anywhere" would have added a lot to the post.

Sharing the conversation would be cool too, I'm curious if Scott just said "no that won't work" 10 times until it did, or if he was constructively working with the LLM to get to an answer.