What do you mean, split eight characters?
Disassembling the eight characters, also in batches, is to change a person's date and time of birth into four pillars and eight characters to predict his life, including wealth, longevity, wealth, marriage, temperament and so on. This technology has a history of thousands of years in China, and it is also one of the unique technologies in China. Whether it is useful or not, that is, how accurate, is inconclusive. I can only say, if you believe it, you won't. Good luck.