> I guess what I'm asking is: do you see a future where there is more explicit control afforded to people who want to pick their own tradeoffs without resorting

> I guess what I'm asking is: do you see a future where there is more explicit control afforded to people who want to pick their own tradeoffs without resorting to writing everything performance-sensitive in extensions written in C/Rust/whatever? An approach exists already in the present, and it's Stripe's Sorbet AOT compiler (https://github.com/sorbet/sorbet/tree/master/compiler https://github.com/sorbet/sorbet/tree/master/compiler).