WEBVTT 00:00:08.588 --> 00:00:11.000 How do we really know, that that which we see, 00:00:11.000 --> 00:00:14.288 touch and taste really exists? 00:00:14.538 --> 00:00:16.544 What is reality? 00:00:16.550 --> 00:00:19.180 The objects or how we perceive them? 00:00:19.187 --> 00:00:21.973 Do we see the world as its is, or is the world what it is, 00:00:21.973 --> 00:00:23.531 because we perceive it as such? 00:00:23.531 --> 00:00:24.942 Let's imagine the following: 00:00:24.942 --> 00:00:27.296 We are in a cave, deep underground. 00:00:27.296 --> 00:00:28.864 There is no visible daylight. 00:00:28.864 --> 00:00:32.037 In this cave, people are tied to chairs in such a way 00:00:32.037 --> 00:00:34.408 that they can only look at the cave wall. 00:00:34.408 --> 00:00:35.898 From the time they are born, 00:00:35.902 --> 00:00:38.383 they are shown black-and-white movies continuously. 00:00:38.383 --> 00:00:42.161 The audience believes that the film is a true reflection of reality. 00:00:42.191 --> 00:00:44.843 What sounds like an experiment from the 3rd Reich, 00:00:44.843 --> 00:00:47.562 is actually a 2000-year-old mind game, 00:00:47.671 --> 00:00:49.596 conceived by Socrates' star pupil: 00:00:49.596 --> 00:00:50.429 Plato! 00:00:50.469 --> 00:00:51.532 Now suppose, 00:00:51.532 --> 00:00:55.188 that one of these bold youngsters actually escapes from the cave 00:00:55.188 --> 00:00:59.038 and sees the three-dimensional, colourful world for the first time. 00:00:59.038 --> 00:01:00.581 How would he feel? 00:01:00.589 --> 00:01:03.399 Probably similar to the brave Keanu Reeves in the "Matrix", 00:01:03.399 --> 00:01:06.413 in the scene where he wakes up in real world for the first time. 00:01:06.413 --> 00:01:07.317 And worst of all, 00:01:07.317 --> 00:01:10.395 if our ancient Neo were to return to his friends 00:01:10.695 --> 00:01:13.342 and tell them that the world as they know it 00:01:13.342 --> 00:01:14.628 isn't real… 00:01:14.712 --> 00:01:17.112 then he would be dismissed as a madman. 00:01:17.221 --> 00:01:20.024 According to Plato, our reality is based on 'ideas' 00:01:20.305 --> 00:01:23.796 Objects, and how we experience them, are only their images. 00:01:24.003 --> 00:01:27.237 However, for Plato the term 'idea' represented more. 00:01:27.288 --> 00:01:29.214 It was about the essence of all things, 00:01:29.214 --> 00:01:32.425 that which we saw as part of an ideal world 00:01:32.545 --> 00:01:34.446 and that which we recalled from memory. 00:01:34.655 --> 00:01:37.085 What he pioneered with this is a doctrine 00:01:37.085 --> 00:01:38.081 called "idealism", 00:01:38.531 --> 00:01:41.135 to which Leibnitz and Kant later also subscribed to. 00:01:41.135 --> 00:01:43.467 However, this does not mean diligently donating 00:01:43.467 --> 00:01:45.228 to victims of natural disasters 00:01:45.228 --> 00:01:48.222 or serving soup to the homeless at Christmas. 00:01:48.390 --> 00:01:51.512 Just as the real meaning of "materialism", 00:01:51.512 --> 00:01:55.306 isn't the "My house, My boat, My investment advisor" song sung by Madonna 00:01:55.306 --> 00:01:57.295 or the meaning of the Yuppie Lifestyle. 00:01:57.693 --> 00:02:02.022 Materialism is the philosophical countermovement to idealism. 00:02:02.093 --> 00:02:05.542 Idealism sees the origin of reality in the "idea", 00:02:05.542 --> 00:02:08.839 whereas with materialism "matter" is decisive. 00:02:08.839 --> 00:02:11.598 Thus, reality arises due to the effect of the environment 00:02:11.598 --> 00:02:13.896 and not by the way in which we perceive it. 00:02:14.019 --> 00:02:17.478 To the question "What is?" materialism answers: 00:02:17.478 --> 00:02:18.582 Only matter. 00:02:18.582 --> 00:02:20.281 The world exists how it is 00:02:20.281 --> 00:02:22.555 and we must conform to its laws. 00:02:22.555 --> 00:02:24.941 Sounds bleak in the long run, though, doesn't it? 00:02:24.941 --> 00:02:27.932 So, are we just the ball in a cosmic pinball machine then? 00:02:27.932 --> 00:02:29.806 So where does reality lie? 00:02:29.806 --> 00:02:32.578 Within us or out there? 00:02:32.578 --> 00:02:34.784 This game ends in a draw