Consider three horses, each pulling a cart filled with hay. The horses are in a row, walking down the road. As it walks, the second horse gets to eat from the hay that the first horse is pulling. The third horse gets to eat from the hay the second horse is pulling. Which horse would you prefer to be?

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Dr. Cliff Pickover is the author of forty mind-expanding books at the edges of science, mysticism, and religion. His latest book is Archimedes to Hawking: Laws of Science and the Great Minds Behind Them.