You're making it sound like you're disagreeing with me but it sounds like we're in complete agreement on the main point: it's not impossible to create a cPython JIT. It's a choice whether to do it or not. (And by the way, creating a JIT is a piece of engineering, it's not black magic). It's fair enough if people think that would be the wrong choice, I might even agree actually, but if the cPython developers say, time and time again, that python is inherently unsuitable to be JITted then that's wrong and it prevents that discussion from taking place.