OBSTACLE 5: LOOKING FOR ANSWERS IN THE WRONG PLACE In 2010, David H. Freedman wrote an article for Discover, “Why Scientific Studies Are So Often Wrong: The Street-light Effect.”1 It’s based on the old story of the man who is crawling around underneath a streetlight. A policeman comes up to the man and asks him what he is doing. “I’m looking for my keys,” the man replies. And then he points down the street and says, “I dropped them over there.” The officer is puzzled. “If you dropped them over there, why are you looking for them here?” The man believes the answer is obvious. “Because the light
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