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Experience machine
The Experience Machine or Pleasure Machine is a thought experiment put forward by philosopher Robert Nozick in his 1974 book ''Anarchy, State, and Utopia''. It is one of the best known attempts to refute ethical hedonism, and does so by imagining a choice between everyday reality and an apparently preferable simulated reality.
If the primary thesis of hedonism is that "pleasure is the good", then any component of life that is not pleasurable does nothing directly to increase one's well-being. This is a view held by many value theorists, but most famously by some classical utilitarians. Nozick attacks the thesis by means of a thought experiment. If he can show that there is something other than pleasure that has value and thereby increases our well-being, then hedonism is defeated.
==The thought experiment==
Nozick asks us to imagine a machine that could give us whatever desirable or pleasurable experiences we could want. Psychologists have figured out a way to stimulate a person's brain to induce pleasurable experiences that the subject could not distinguish from those he would have apart from the machine. He then asks, if given the choice, would we prefer the machine to real life?
Nozick also believes that if pleasure were the only intrinsic value, people would have an overriding reason to be hooked up to an "experience machine," which would produce favorable sensations.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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