So if LLMs can write C really "well" - as in they can keep track of all the memory allocations, branches and conditions that would prevent the typical memory problems associated with C...then do we even need Rust anymore? The control of the memory allocations and layout in C does theoretically mean you can ultra-optimise the code. The LLMs can write 1000s of unit tests and they're really good at fuzzing.

I don't know Rust well enough to understand what else it would provide over the safe memory guarentees?