The term comes from C++, where it does have a fairly rigorous definition: https://en.cppreference.com/w/cpp/language/Zero-overhead_principle https://en.cpprefe

The term comes from C++, where it does have a fairly rigorous definition: https://en.cppreference.com/w/cpp/language/Zero-overhead_principle https://en.cppreference.com/w/cpp/language/Zero-overhead_pri... Although: https://www.youtube.com/watch?v=rHIkrotSwcc https://www.youtube.com/watch?v=rHIkrotSwcc I'm not sure whether Rust people consistently use it with precisely the same sense.