The blindness of the visionaries: Alan Turing

When Alan Turing was thinking about the Turing machine he was able to see the Infinity, i.e. he was able to see his machine entering an infinite loop.

When Alan Turing was thinking about the Turing test he was unable to see the Infinity, i.e. he was unable to see that his argument produces an infinite regress. In other words, if the criterion for intelligent behavior of the tested (computer) is its ability to fool the tester (human) that it (the computer) is human, then the criterion for intelligent behavior of the human (tester) is his ability to fool someone else (the metatester) that he (the human) is someone else (a metatester), then the criterion for the intelligent behavior of the metatester is her ability to fool the metametatester that she (the metatester) is a metametatester, then ...