Is fortune telling credible? why

Credible. Because fortune telling is the cultural essence handed down from generation to generation by our ancestors. For example, the Classic of Mountains and Seas is always said to be the fantasy of the ancients, but the ancients would not write their thoughts in such detail. Fortune telling is the foundation of metaphysics. Five lines of gossip complements them. Why has Shan Hai Jing not found an author so far? Think about it and you will know the author's intention.