Okay, but verifying a type system and language specification for soundness wouldn't actually give you any of the guarantees you want if the compiler toolchain isn't verified to implement them correctly. And this sort of thing just isn't standard practice in the industry and never has been. Sure it would be nice if more things were verified, and we are somewhat headed in that direction, but it seems weird to say that rust specifically is just a bunch of half-baked yoloing because it doesn't do something that essentially no other language is doing either.