“How are we to evaluate the truth claims of science when we know that these claims may in the future be overturned? Elsewhere I have called this problem the instability of scientific truth.16 In the 1980s, philosopher Larry Laudan called it the pessimistic meta-induction of the history of science.17 He observed (as have many others) that the history of science offers many examples of scientific “truths” that were later viewed as misconceptions”