[tialaramex]

Among C++ programmers "Best performance" isn't about actual optimization it's a brag with about the same semantic value as for Broadway and so it's not measurable. The woman who wins a Tony for "Best performance in a musical" isn't measurably faster, or smaller, she's just "best" according to some panel. Did audiences like it? Did the musical make money? Doesn't matter, she won a "Best performance" Tony.

[pjmlp]

Only those that have C++ tatoos and their whole career bound to mastering a single language, selling that knowledge.

Other of us, use it as tool required to integrate with existing products, language runtimes, and SDKs written in C++, which most likely won't get replaced anytime soon.

[secondcoming]

How is performance not measurable?

Getting into the weeds of what a compiler does with your code is fun.

People have been doing micro optimisations since computers became a thing, you benefit from them every day without realising - and seemingly not appreciating - it.