The biggest issue with trying to prove whether or not M is an AI is that, contrary to other AIs that pretend to be human, M insists it’s an AI. Thus, what we would be testing for is humans pretending to be an AI, which is much harder to test than the other way round, because it’s much easier for humans to pretend to be an AI than for an AI to pretend to be a human. In this situation, a Turing test is futile, because M’s objective is precisely to not pass a Turing test. So what we want to prove is not the limitations of the AI, but the limitlessness of the (alleged) humans behind it. What we need therefore is a different test. An “Anti-Turing” test, if you will.