I became very interested in Chinese fortune telling in the early 1980s, and did an enormous amount of research into the subject, not from the perspective of a believer, but to use it as a way of understanding how science, astromony and religion were all intertwined in ancient China into a world view which seemed to match, and dramatically pre-date, Stephen Hawking's search for the ultimate formula that would explain everything. I still don't believe in fortune-telling and I never completed the book, but I still think the topic is worth looking into. Here are large sections of what I completed at the time.