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Many years ago there was a wise king who gathered his scholars together and told them to write down everything they had learned so he could pass it on to future generations. After sometime they reported back with 12 large volumes and he said no, this is too cumbersome and sent them out to summarize. Once again they returned with one large volume and once again he sent them away. Finally after years of work they came to him with a piece of paper and it had one sentence on it and he was satisfied. It said, "there ain't no free lunch".