Is Ni's divination true?

Xia Hai's divination is true, so is Xia Hai's divination. He is familiar with medicine, Yi, Yin and Yang, and Feng Shui. He is regarded as one of the few people with five skills of "life, physiognomy, divination, mountain and medicine", and is deeply trusted by American upper class. Therefore, Ni's divination is true, but these are feudal superstitions without scientific basis. We should believe in science. This answer is for reference only. Don't be blindly superstitious.