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The brain in a vat is an element used in a variety of thought experiments intended to draw out certain features of our ideas of knowledge, reality, truth, mind, and meaning. It is drawn from the idea, common to many science fiction stories, that a mad scientist, machine or other entity might remove a person's brain from the body, suspend it in a vat of life-sustaining liquid, and connect its neurons by wires to a supercomputer which would provide it with electrical impulses identical to those the brain normally receives. According to such stories, the computer would then be simulating reality (including appropriate responses to the brain's own output) and the person with the "disembodied" brain would continue to have perfectly normal conscious experiences without these being related to objects or events in the real world.
假设将我们的大脑放入一个裝有营养液的桶內,并用超级计算机连接脑的神经末梢,而计算机可以向大脑传递各种信息,大脑所体验到的世界其实是计算机制造的一种幻觉,则此大脑如何验证其本身的存在呢? |
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