There is no direct correlation between fiction and knowledge, for knowledge is an individuals accumulation of factual information. Obviously, fiction is not fact, however often times fiction can lead to knowledge. For instance, before the enlightenment one can argue that peoples explanations for common earthly aspect were fictional. There were no real answers for why things were the way they were so people created an understanding for them through fiction. Although their understandings were not accurate, they essentially led to the enlightenment, a period where people were hungry for scientific explanations. Another example that comes to mind is from the 15th century when Christopher Columbus challenged the idea of a flat earth. Although every one had  established that the planet was entirely flat, Christopher Columbus sought the truth and eventually succeeded  in proving that the earth was indeed round. These two examples show that although the original explanations  may originate from fiction and imagination  often times result in truth being discovered. One can argue that many innovations can come out of fiction and imagination. In my opinion every invention comes from a “what if” idea. For example “what if we had a device that can capture a moment forever?” Eventually the camera was invented. This applies for improving inventions that already exist. For instance “what if we had a telephone that is portable and can make calls from almost any where?” Thus the cellphone. While fiction is not real or true, we obtain real factual information from it when attempting to seek the truth and we push ourselves technologically to create innovations that all originate in ones fantasy.