A sibling comment also mentioned Jai. Not sure what I am missing that the original post was explicitly referring to Jai, some inside joke maybe?
I am sorry, I only know Odin. Jai is this cult on reddit/discord, right? You get access if you socialize enough or something? Not my thing. Not for a language.
Ah. So, the context (Which I read too far into evidently): 1: One of Jai's initial primary marketing points was to address exactly this: SoA performance with AoS ergonomics. 2: Odin is (or was initially) inspired by Jai.
(original poster here)
I was just throwing out an idea. I had no idea there were already implementations! Because, to my knowledge, conventional popular languages like C/C++/C#/Java/JS/Python don't do that, and automatically doing that (under certain conditions) feels like an easy performance win.