0:00 The first version of what we now call the Turing Test wasn't about whether a machine could pass as a human.0:08 It was about whether a man could convincingly impersonate a woman.0:14 Last week, we sat with the ghosts of Darwin and Curie, and it feels like we’re continuing that same mission tonight, sitting down with the mind of Alan Turing.0:27 Because that one detail—that the test was originally about performance, about passing—it changes everything.0:35 It suggests he was always asking a much deeper question.0:40 You know, for a man who laid the foundations for the world we ALL now live in, we talk about him in such...0:49 simple terms.0:50 The codebreaker.0:51 The father of A.I.0:53 But sitting with his ideas, you feel a mind that was never simple.0:58 He saw the world as a set of programmable systems, some built of gears and wires, others of rules and expectations.1:07 That first imitation game...1:10 it wasn't about technology.1:12 It was about seeing if a judge could tell the difference between a man and a woman based only on written answers.1:21 He was testing the system of gender itself.1:25 He was asking, what is "real," and what is just a convincing performance that we've all agreed to believe?1:33 And then he was dropped into the middle of a world war, at Bletchley Park, and the imitation game became terrifyingly real.1:43 He had to build a machine—the bombe—to imitate and predict the logic of another machine, the Nazi Enigma.1:52 The stakes weren't academic anymore.1:55 Historians say his work saved somewhere between fourteen and twenty-one million lives.2:02 He was playing the biggest game of imitation in human history, against a machine designed to be unbreakable, with the fate of the world on the line.2:14 And he won.2:15 He saw the patterns in the noise.2:18 He broke the code.2:19 And here is the part of the story that is just...2:23 impossible to hold.2:25 Here is the turn.2:26 The man who designed a machine to save the British state...2:31 was then destroyed by the machinery of that same state.2:35 The system he saved turned on him.2:38 In 1952, he was prosecuted for "gross indecency." For being a homosexual.2:44 The code of the law.2:46 He wasn't judged on his mind, which was arguably one of the most brilliant of the century.2:53 He was judged for his nature, for who he loved.2:57 And the punishment was...2:59 a kind of code-breaking of the body.3:02 Chemical castration.3:04 Two years later, he was dead.3:06 So when we look back from ten years from now, or a hundred...3:11 what will we say this moment with Turing was actually about?3:16 We get so caught up in the question he supposedly asked: "Can machines think?" But I don't think that was ever his most important question.3:27 I think his entire life, his work, his tragedy...3:31 it all points to a much harder question aimed at us.3:35 The single idea worth remembering from Alan Turing isn't about artificial intelligence.3:43 It's about human judgment.3:45 His work forces us to ask: can WE think?3:48 Can we look at something new, something different—a different kind of mind, a different kind of person—and not just fall back on our oldest, most prejudiced programming?4:02 The test he designed wasn't just for the machines.4:06 It was for the judges.4:08 It's always been for the judges.4:10 His legacy is a question aimed not at his machines, but at the humanity of their makers.