Syntax of things I don't remember or care about, like regexes in language X or Y. Syntax of things I used to know but I'm not up to speed on the latest versions. For example, using tailwind, I can just describe in english what I want to happen with page elements and for the most part AI gets the code right, sometimes its wrong and I need to debug.

A common argument I hear about AI is "I could just write it faster myself", well I know CompSci and general info about a lot of software things but it would take hours of getting up to speed on areas I'm not an expert in to be productive. I can just delegate that to AI and get mostly correct outputs, this is okay with me and faster than what I could do.

I think the cost is going to catch up with the AI companies running the models (not the companies building products that call AI APIs) and that is when the bubble will burst. They will need to keep increasing costs and at some threshold, fewer and fewer developers in an organization will have licenses because it may become unaffordable.