You most definitely know a lot more about code than me. So I'm not challenging you at all. But my contention is that robustness is a function of resilience. C has a class of errors which are hard to spot for foot-soldiers, and sometimes even generals which can leave deadly chinks unspotted for long. If Rust attempts to do away with those specific type of errors altogether, what's wrong with that? Rewriting code. And if that seems like a challenge worth attempting for some people, I can't fault it. And in the process maybe we will discover more bugs, or maybe something better. Its evolution, no?