Would you opt for a life with no pain? - Hayley Levitt and Bethany Rickwald

3,247,072 views ・ 2015-11-17

TED-Ed


Please double-click on the English subtitles below to play the video.

00:06
Imagine if you could plug your brain into a machine
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that would bring you ultimate pleasure for the rest of your life.
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If you were given the choice to sign up for that kind of existence, would you?
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That's the question philosopher Robert Nozick posed
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through a thought experiment he called the Experience Machine.
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The experiment asks us to consider a world
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in which scientists have developed a machine that would simulate real life
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while guaranteeing experiences of only pleasure and never pain.
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The catch?
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You have to permanently leave reality behind,
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but you'll hardly know the difference.
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Your experiences will be indistinguishable from reality.
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Life's natural ups and downs
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will just be replaced with an endless series of ups.
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Sounds great, right?
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It may seem like a tempting offer, but perhaps it's not as ideal as it sounds.
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The experiment was actually designed to refute a philosophical notion
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called hedonism.
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According to hedonists,
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maximizing net pleasure is the most important thing in life
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because pleasure is the greatest good that life has to offer.
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For hedonists, the best choice that a person could make for himself
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is one that brings him the greatest possible amount of pleasure
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while bringing him no pain.
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Limitless pleasure minus zero pain equals maximum net pleasure,
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or in other words, the exact scenario the Experience Machine offers.
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Therefore, if hedonism is your philosophy of choice,
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plugging in would be a no-brainer.
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But what if there's more to life than just pleasure?
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That's what Nozick believed he was demonstrating
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through his Experience Machine thought experiment.
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Despite the machine's promise of maximum net pleasure,
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he still found reason not to plug in,
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as do many other experimenters who consider the proposition.
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But what could possibly dissuade us from choosing a future of ultimate pleasure?
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Consider this scenario.
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Betsy and Xander are in a loving, committed relationship.
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Betsy is head over heels and has never felt happier.
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However, unbeknownst to Betsy,
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Xander has been romancing her sister, Angelica,
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with love letters and secret rendezvous for the duration of their relationship.
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If Betsy found out,
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it would destroy her relationships with both Xander and Angelica,
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and the experience would be so traumatic, she would never love again.
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Since Betsy is in blissful ignorance about Xander's infidelity,
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hedonists would say she's better off remaining in the dark
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and maintaining her high level of net pleasure.
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As long as Betsy never finds out about the relationship,
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her life is guaranteed to go on as happily as it is right now.
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So, is there value in Besty knowing the truth of her situation?
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Imagine if you were Betsy.
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Would you prefer to know the truth?
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If the answer is yes,
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you'd be choosing an option that sharply decreases your net pleasure.
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Perhaps, then, you believe that there are things in life
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with greater intrinsic value than pleasure.
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Truth, knowledge, authentic connection with other human beings.
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These are all things that might make the list.
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By never learning the truth,
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Betsy is essentially living life in her own personal Experience Machine,
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a world of happiness that's not based in reality.
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This love triangle is an extreme example,
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but it mirrors many of the decisions we make in day to day life.
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So whether you're making a choice for Betsy or for yourself,
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why might you feel reality should be a factor?
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Is there inherent value in real experiences,
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whether pleasurable or painful?
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Do you yourself have more value
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when you're experiencing real life's pleasures and pains?
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Nozick's experiment may not provide all the answers,
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but it forces us to consider whether real life, though imperfect,
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holds some intrinsic value beyond the pleasure of plugging in.
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