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Robert Nozick Reliabilism

Decent Essays

Robert Nozick presents a reliabilist view of the conditions of knowledge as he states that causal connection is not enough and “for a true belief to qualify as knowledge it must not be a lucky coincidence that the belief is true…must be non-accidentally true” (21). He states that the belief must be true if possible changes are made to p in possible worlds, closest to the real world (subjunctive conditionals). In his essay, Nozick supports his argument with the relevant alternative theory of knowledge that states that “a subject knows that p if he can distinguish or discriminate the truth of p from the possible alternatives” (24). The example in the text stated that it is not enough to believe that the person in front of you is who you think he/she is (e.g. Lilly), if you are not able to distinguish them from a twin (e.g. twin Milly), then it does not matter if your belief is true, you have no knowledge of the person being in front of you being Lilly. Nozick presents two subjunctive conditionals: variation condition (“not-p  not-(S believes that p)) and adherence condition (p  S believes that p) (22). The problem with reliabilism is that due to the adherence condition, true beliefs can be said to lack …show more content…

If Henry was not looking at a real barn (p false) and papier-mache barns are scattered (q would be true), he would still believe that he was looking at a real barn. The variation condition would not be satisfied (not-looking at a real barn  not-(Henry believes that he is looking at a real barn)), therefore Henry does not know p. However, the alternative is irrelevant (e.g. the papier-mache barns are scattered in another location) then it does not affect the reliability and the subject then knows p

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