Yes, but that makes it a pretty elitist thing no? Maybe elitist is the wrong word (not a native english speaker), but I mean; I would be able to always make the test fail for the computer if I am the interrogator because because. I cannot say why. Something like you say and something where I think that there is a very large % of the world population who will not be able to make that distinction.

An interesting would be to do the Turing test with a timer; the interrogator gets 30s for each session and has to say who is what within 30s and then continue to the next batch. I think computers would go very very far if you do that. But that is the attention span consider normal currently for human/human social media interaction; often even less.

You need to distinguish humans from computers, you don't know whether you're talking to a computer or not. Failing everybody doesn't work. Maybe I'm not getting what you're trying to do.