I understand your point, but for the most part memory-safety features and speed of execution run contrary to one another. Garbage collection and bounds checkin

I understand your point, but for the most part memory-safety features and speed of execution run contrary to one another. Garbage collection and bounds checking is big sticking point for systems / high performance programming, and to an extent real-time programming. As far as I can tell, Rust should be about the limit of what's possible if you want to have your cake and eat it too. But I'll doubt it'll ever replace C for speed-critical applications.