The Machine That Feels Like Life

Written by Studio AM.

In 1974 the philosopher Robert Nozick described a machine that could give you any experience you wanted. You would float in a tank with your brain wired to it, and you would feel yourself writing a novel, earning a friend's trust, climbing a mountain, each experience as vivid as reality, with its artificial source not detectable from within. You could program a lifetime in advance. Nozick asked whether you would choose to plug in.

Consider a refusal. That answer creates a challenge for any theory that treats pleasant experience as the only thing that finally matters, if we assume the machine offers more pleasure than life outside. On that theory, choosing the less pleasant life would need an explanation.

Nozick suggests one explanation: we want to do certain things, not merely to have the experience of doing them, and we want to be a certain kind of person, a concern not settled by simulated achievements. The thought experiment does not prove this. It makes a possible commitment explicit: real action and contact with the world may matter to us beyond how pleasant they feel.

Questions

Choose an answer. The explanation appears after you answer.

  1. Question 1 of 4

    What does the experience machine test?

  2. Question 2 of 4

    According to the passage, what is true of experiences inside the machine?

  3. Question 3 of 4

    Why would choosing life outside challenge the theory described?

  4. Question 4 of 4

    What does “detectable” mean in this passage?

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