Performance sensitivity is a rather relative line, I understand your point but I’ve heard people argue that C was the performance sensical choice as opposed to C++, or assembly rather than C. I love python but I wouldn’t use it for everything. I really enjoy Go but the use cases for me are smaller than most people I know that use Go daily. At work we have to use Go and I’ve had to make the argument to use JVM for some services and Erlang/Elixir for other use cases. I could’ve done everything in Go, but it really felt more dogmatic than pragmatic