[webmaven]

>> Obviously it's theoretically possible to run Python 2 in Python 3, but until they do it then they have decided to say that Python 3 cannot run one other Turing complete language so logically Python 3 is not Turing complete."

> "Turing completeness" doesn't mean "I can run a program written in X in Y's runtime."

That's not quite what he meant. He meant that Turing completeness of both languages implies that an interpreter for Python 2 can be written in Python 3,and that if the Python maintainers say it isn't possible, etc. etc.

Which is technically true, except that it is completely obvious that the performance of Python 2 under that arrangement would so totally suck that no sane developer would ever take that approach (and I can believe that the Python maintainers just said "that won't work" or some such), and that is what he apparently didn't understand (or is now claiming he pretended not to understand for comedic effect).