> These are not identical tests -- but if both the real human examinee and the human examiner in Turing's original test are rational (trying to maximise their s

> These are not identical tests -- but if both the real human examinee and the human examiner in Turing's original test are rational (trying to maximise their success rate), and each have the same expectations for how real humans behave, then the examiner would give the same answer for both forms of the test. I disagree. Having a control and not having a control is a huge difference when conducting an experiment.