Every single person is a genius. But if you rate a fish based on its ability to scale a tree, it will spend its whole existence thinking it is stupid. This amazing remark is typically attributed to Albert Einstein, although it might have come from a number of different sources, which is rather apt given its subject matter. The real Einstein made many other profound observations in his time on physics, mathematics, and other scientific disciplines, so it's possible that this is just another one of his jokes. If so, it's a good one. Einstein was among the most prolific writers in history, having produced over 500 articles and papers during his lifetime. He is also known for his satire, particularly about politics and religion. His cartoons have been described as "penetrating, prophetic, and at times even hilarious". One such cartoon, which appeared in the New York Tribune in 1907, portrays a scientist being asked by a religious leader why there is evil in the world. The reply is interesting for today's readers: "I cannot answer that question." It is likely that this is not actually what caused the demise of the theory, but rather that its main proponent, Paul Dirac, refused to talk to him anymore after this comment. However, the paper did not go over well with his peers, who considered it heretical for two reasons: first, because it challenged the idea that humans are the only intelligent life form in the universe; second, because it suggested that science could not answer all questions.