Oh, well if it can generate some simple code for your personal website, surely it can also be the "next level of abstraction" for the entirety of software engineering.
And in any case, you are moving goalposts. OP said he had never seen anyone serious claim that they got productivity gains from AI. When I claim that, you say “well it’s not the next level of abstraction for all SWE”. Obviously - I never claimed that?
Your site is case in point of why LLMs demo well but kind of fall apart in the real world. It's pretty good at fitting lego blocks together based on a ton of work other people have put into React and node or the SSE library you used, etc. But that's not what Karpathy is saying, he's saying "the hottest programming language is english".
That's bonkers. In my experience it can actually slow you down as much as speed you up, and when you try to do more complicated things it falls apart.
This is what the parent said.
> some simple code for your personal website
This is your (reductive) characterization of their work. That's fine, but please keep in mind that that's your inference, not what the parent said.