inference to the best explanation

inference to the best explanation an inference by which one concludes that something is the case on the grounds that this best explains something else one believes to be the case. Paradigm examples of this kind of inference are found in the natural sciences, where a hypothesis is accepted on the grounds that it best explains relevant observations. For example, the hypothesis that material substances have atomic structures best explains a range of observations concerning how such substances interact. Inferences to the best explanation occur in everyday life as well. Upon walking into your house you observe that a lamp is lying broken on the floor, and on the basis of this you infer that the cat has knocked it over. This is plausibly analyzed as an inference to the best explanation; you believe that the cat has knocked over the lamp because this is the best explanation for the lamp’s lying broken on the floor. The nature of inference to the best explanation and the extent of its use are both controversial. Positions that have been taken include: (a) that it is a distinctive kind of inductive reasoning; (b) that all good inductive inferences involve inference to the best explanation; and (c) that it is not a distinctive kind of inference at all, but is rather a special case of enumerative induction. Another controversy concerns the criteria for what makes an explanation best. Simplicity, cognitive fit, and explanatory power have all been suggested as relevant merits, but none of these notions is well understood. Finally, a skeptical problem arises: inference to the best explanation is plausibly involved in both scientific and commonsense knowledge, but it is not clear why the best explanation that occurs to a person is likely to be true.
See also ABDUCTION , EXPLANATION, IN- DUCTION , INFERENCE , PHILOSOPHY OF SCI – ENC. J.G.

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