Overview
Nelson Goodman proposed the Grue Paradox, also called the Grue Problem or the New Riddle of Induction, to discuss a problem within the philosophy of science where categories constructed from present evidence can fail to predict future cases.
Simply put, let’s say we can observe that objects in a bucket are either green or blue today. However, after 10 years, we observe that some green objects turn blue. We might call these “grue” to distinguish them from permanently green and blue items. In the present though, we have no way of distinguishing green from grue.
Let’s apply this to substance use disorders. Studies show that some people