C++ Is Premature Optimization
While C++ does give you extraordinary power to optimize and specify your code, ultimately it suffers from enforced application of it's own rigid model for how you do that. Invariably high-performant code becomes a mass of unreadable, undebuggable code with excessive template parameters. And the magic that is the compiler is walled off from you: you have no power to modify or enhance it's behavior.
I may be turning into a Lisp convert at long last.