But without a way to recoup the performance when you need it, then C++ potentially becomes as slow as things like Go or Java with extra footguns and slower developer speed. That's why Rust has `unsafe` and `unchecked` API methods that you can use in unsafe to bypass bounds checks. And it's an extremely consistent API surface to deal with (not to mention a much better thread safety story which Herb hand waves away as "not important because other languages also have thread safety issues" even though he admits no one is as bad as C++ here).
