@simon
Which is not a problem, to be clear. Handling big languages with common problems is the high impact case.

Also, I just asked Gemini for a parallel prefix-sum in Chapel and it gave me a credible-looking piece of code. Now, prefix-sum is Baby's First Parallel Algorithm, and there's bound to be Chapel examples out there to draw from, but that's still a lot better than what I got with an earlier model.