Entirely replacing estabilished languages doesn't really ever happen, it's just the nature of the game. Server software for unixy systems used to be near unive

Entirely replacing estabilished languages doesn't really ever happen, it's just the nature of the game. Server software for unixy systems used to be near universally written in C and it's still "the" platform language. And it can be certainly be said that alternative languages have come and gone. But: C has become a niche.