So, in the context of the Turing test, “being subject to the Lucas-Penrose constraint” implies the existence of a class of “unanswerable” questions. However Turing noted that in the context of the Turing test, these “unanswerable” questions are only a concern if humans can answer them. His “short” reply was that it is not clear that humans are free from such a constraint themselves. Turing then goes on to add that he does not think that the argument can be dismissed “quite so lightly.”