If a computer can judge a work of art, then I am sure it ,itself, can also produce art. That is, if it can decide who is creative then it itself can be creative. The key to creativity is making analogies. Deciding which is good or what is bad. Just random mixture of ideas is not any creative. If we want to know more about creativity we will have to first answer why people have different preferences? like favorite colors, foods, etc. What makes one feel pleasure when sees red and the another when he sees blue? But there is another thing. One's preferences changes with time. I ,myself, had changed my favorite color thrice. First green, then brown, now sky blue. What makes these kinds of changes? If we solve this mystery of personal favorites, then we would be able to create programs that have personal favorites, can imagine and are creative. Any body has any idea about any computer program which exhibits personal favorites or creativity? Or any theory about personal favorites?