But do you need this in the 99% of cases? Probably not. You can write productive, performant, and safe code in safe Rust fine. If you do need to do something t

But do you need this in the 99% of cases? Probably not. You can write productive, performant, and safe code in safe Rust fine. If you do need to do something this exotic, the fundamentals don't change: you still need to take care of memory lifetimes, you still need to ensure thread safety, etc. I really don't think it's as all-or-nothing as you believe it to be.