 There are authors who have suggested that The Turing Test should be replaced with a more demanding test of one kind or another. It is not at all clear that any of these tests actually proposes a better goal for research in AI than is set by The Turing Test. However, in this section, we shall not attempt to defend that claim; rather, we shall simply describe some of the further tests that have been proposed, and make occasional comments upon them. (One preliminary point upon which we wish to insist is that Turing’s Imitation Game was devised against the background of the limitations imposed by then current technology. It is, of course, not essential to the game that tele-text devices be used to prevent direct access to information about the sex or genus of participants in the game. We shall not advert to these relatively mundane kinds of considerations in what follows.)