It’s not up to the skeptics to prove this tech doesn’t work, it’s up to the proponents to show it does and does so with a similar effect size as cigarettes cause lung cancer.
There are a tremendous amount of LLM productivity stans on HN but the plural of anecdote is not data.
Certainly these tools are useful, but the extent to which they are useful today is not nearly as open and shut as you and others would claim. I’d say that these tools make me 5% more productive on a code base I know well.
I’m totally open to opposing evidence that isn’t just anecdote