alt Hacker NewsAll "dynamic" means is that you don't know or don't prove the precise value statically. However you may know the range of possible values, or you may know properties of your algorithm that mean it can never attempt an out-of-bounds access. Sometimes you don't know any of these things, but sometimes you do.
What I was (badly) trying to express was more that given static bounds rust could also eliminate dynamic checks. So saying e.g. ATS can eliminate static checks, is kind of switching the target.