0:00:06.837,0:00:10.044 Imagine if you could plug [br]your brain into a machine 0:00:10.044,0:00:13.320 that would bring you ultimate pleasure[br]for the rest of your life. 0:00:13.320,0:00:17.620 If you were given the choice to sign up[br]for that kind of existence, would you? 0:00:17.620,0:00:20.163 That's the question philosopher [br]Robert Nozick posed 0:00:20.163,0:00:24.115 through a thought experiment[br]he called The Experience Machine. 0:00:24.115,0:00:26.295 The experiment asks us [br]to consider a world 0:00:26.295,0:00:30.376 in which scientists have developed [br]a machine that would simulate real life 0:00:30.376,0:00:35.610 while guaranteeing experiences[br]of only pleasure and never pain. 0:00:35.610,0:00:36.540 The catch? 0:00:36.540,0:00:39.012 You have to permanently[br]leave reality behind, 0:00:39.012,0:00:40.845 but you'll hardly know the difference. 0:00:40.845,0:00:44.246 Your experiences will be [br]indistinguishable from reality. 0:00:44.246,0:00:45.758 Life's natural ups and downs 0:00:45.758,0:00:49.835 will just be replaced [br]with an endless series of ups. 0:00:49.835,0:00:51.401 Sounds great, right? 0:00:51.401,0:00:56.097 It may seem like a tempting offer,[br]but perhaps its not as ideal as it sounds. 0:00:56.097,0:00:59.882 The experiment was actually designed[br]to refute a philosophical notion 0:00:59.882,0:01:01.580 called hedonism. 0:01:01.580,0:01:02.997 According to hedonists, 0:01:02.997,0:01:06.940 maximizing net pleasure [br]is the most important thing in life 0:01:06.940,0:01:10.309 because pleasure is the greatest good[br]that life has to offer. 0:01:10.309,0:01:13.487 For hedonists, the best choice that[br]a person could make for himself 0:01:13.487,0:01:17.122 is one that brings him the greatest[br]possible amount of pleasure 0:01:17.122,0:01:19.331 while bringing him no pain. 0:01:19.331,0:01:23.699 Limitless pleasure minus zero pain[br]equals maximum net pleasure, 0:01:23.699,0:01:28.424 or in other words, the exact scenario[br]the Experience Machine offers. 0:01:28.424,0:01:30.964 Therefore, if hedonism [br]is your philosophy of choice, 0:01:30.964,0:01:33.979 plugging in would be a no-brainer. 0:01:33.979,0:01:36.766 But what if there's more to life[br]than just pleasure? 0:01:36.766,0:01:39.047 That's what Nozick believed[br]he was demonstrating 0:01:39.047,0:01:42.194 through his Experience Machine [br]thought experiment. 0:01:42.194,0:01:45.117 Despite the machine's promise[br]of maximum net pleasure, 0:01:45.117,0:01:47.591 he still found reason not to plug in, 0:01:47.591,0:01:51.857 as do many other experimenters[br]who consider the proposition. 0:01:51.857,0:01:56.670 But what could possibly dissuade us from[br]choosing a future of ultimate pleasure? 0:01:56.670,0:01:58.156 Consider this scenario. 0:01:58.156,0:02:01.073 Betsy and Zander are in a loving,[br]committed relationship. 0:02:01.073,0:02:04.321 Betsy is head over heels,[br]and has never felt happier. 0:02:04.321,0:02:06.053 However, unbeknownst to Betsy, 0:02:06.053,0:02:09.201 Zander has been romancing[br]her sister, Angelica, 0:02:09.201,0:02:14.403 with love letters and secret rendezvous[br]for the duration of their relationship. 0:02:14.403,0:02:15.524 If Betsy found out, 0:02:15.524,0:02:19.482 it would destroy her relationships [br]with both Zander and Angelica, 0:02:19.482,0:02:23.488 and the experience would be so traumatic,[br]she would never love again. 0:02:23.488,0:02:26.632 Since Betsy is in blissful ignorance[br]about Zander's infidelity, 0:02:26.632,0:02:30.000 hedonists would say she's better off[br]remaining in the dark 0:02:30.000,0:02:33.628 and maintaining her high level[br]of net pleasure. 0:02:33.628,0:02:36.485 As long as Betsy never finds out[br]about the relationship, 0:02:36.485,0:02:41.204 her life is guaranteed to go on[br]as happily as it is right now. 0:02:41.204,0:02:45.823 So, is there value in Besty knowing[br]the truth of her situation? 0:02:45.823,0:02:47.561 Imagine if you were Betsy. 0:02:47.561,0:02:49.909 Would you prefer to know the truth? 0:02:49.909,0:02:51.060 If the answer is yes, 0:02:51.060,0:02:55.340 you'd be choosing an option[br]that sharply decreases your net pleasure. 0:02:55.340,0:02:57.943 Perhaps, then, you believe[br]there are things in life 0:02:57.943,0:03:00.943 with greater intrinsic value[br]than pleasure. 0:03:00.943,0:03:04.807 Truth, knowledge, authentic connection[br]with other human beings. 0:03:04.807,0:03:07.666 These are all things [br]that might make the list. 0:03:07.666,0:03:09.066 By never learning the truth, 0:03:09.066,0:03:13.209 Betsy is essentially living life[br]in her own personal Experience Machine, 0:03:13.209,0:03:17.028 a world of happiness [br]that's not based in reality. 0:03:17.028,0:03:19.341 This love triangle is an extreme example, 0:03:19.341,0:03:23.646 but it mirrors many of the decisions[br]we make in day to day life. 0:03:23.646,0:03:26.570 So whether you're making a choice[br]for Betsy or for yourself, 0:03:26.570,0:03:30.098 why might you feel reality[br]should be a factor? 0:03:30.098,0:03:33.115 Is there inherent value [br]in real experiences, 0:03:33.115,0:03:35.518 whether pleasurable or painful? 0:03:35.518,0:03:37.388 Do you yourself have more value 0:03:37.388,0:03:41.852 when you're experiencing [br]real life's pleasures and pains? 0:03:41.852,0:03:44.358 Nozick's experiment may not provide[br]all the answers, 0:03:44.358,0:03:48.572 but it forces us to consider whether[br]real life, though imperfect, 0:03:48.572,0:03:52.895 holds some intrinsic value [br]beyond the pleasure of plugging in.