In 1960, Science, one of the world’s leading science journals, published an article with an unambiguous title: Doomsday: Friday, 13 November, A.D. 2026. It predicted that on this future date—just over a month from today—the human population would approach infinity and effectively annihilate itself. So to discuss this Phil speaks with Professor Alan MacEachern from the Department of History, at the Western University in London, Canada.