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A Brain In A Vat Summary

Decent Essays

Most of the time, skepticism can be a difficult subject to talk about. John Pollock, author of “A Brain in a Vat”, introduces the idea of skepticism in an unusual way. He begins his writing by conversing about a man who is facing some unfamiliar circumstances. The man later discovers that an evil scientist has taken out his friend’s brain to relocate it into a vat. While this is happening, the brain continues to stay alive. To the man undergoing the experiment, he does not truly know that this has happened. Everything remains to seem completely normal. Meanwhile, the original man learns that he had already gone through the surgery as well, but never noticed anything different. Pollock ends his essay curious about knowing what is real and what is not. His argument states that there is not a true way of knowing what really exists. Is his argument valid? Perhaps the argument is valid, but it most certainly is unsound. It is part of skepticism to …show more content…

A person’s senses would no longer be a useful resource to know what truly exists, because everything would seem as if nothing changed. This argument goes back to how humans form their beliefs. All of the ideas from someone come from somewhere in the physical world. Things that happen in the past will open the mind up for more ideas. Propositions do not just show up on their own. A person with a brain in a vat would not be able to question whether he or she exists because if nothing is different than before, there would be no event from the past to fire up the idea. A person would not be stimulated by past experiences to even question it. For example, according to Descartes famous saying “I think, therefore I am” someone must have to exist in order to say something else about the external world. In other words, since you are, at least, capable of questioning your existence, you must exist because otherwise how would you know to question the existence or

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