I remember the old discussion between clojure programmers and someone who works in a strongly typed language. The argument was “types allow you to be certain that if you change some code, an unrelated but affected part of the codebase will also be flagged and it is not missed” the clojure guy response was “why would you ever design a program where a change in one place affects the other”.

I do think this is an unrelated win of functional languages that hasn’t yet been “discovered” by the vibe coder crowd - FP’s whole premise was that it makes your code depend on much much less things so you can “fit it in your head and reason about”… that’s like the perfect sweet spot for agentic as well, we just haven’t seen tools utilize that in earnest.