The second culturally sanctioned concept of truth has to do with the validity of explanations, whose essential elements are inferred past causes. For instance, suppose that a person visits her doctor presenting a skin rash. Based on the rash’s appearance and the patient’s memory of a recent walk in the woods, the doctor infers that a now-invisible insect bite was the cause. After a few days, the rash clears by itself. Since this is the outcome expected in cases of mild insect bites, can we then say that the diagnosis was true? Not really: it is conceivable that the rash was caused by exposure
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