Morris notes, "for those interested in the statistical analysis of the data, I have included a note from David Dunning. I had wondered whether the “Baskerville Effect” was so small as to be insignificant. A 1.5 percent advantage. Dunning assured me otherwise. He wrote to me, “In the 1990s, the federal government stopped a big trial testing whether taking aspirin prevented heart attacks. The aspirin worked, and it was considered unethical to prevent the control group from starting to take the drug. Size of the advantage to aspirin? It was 0.8%.”’ (Morris, 2012b).