Is the eight-character credible? If it's credible, doesn't that mean there are immortals in the world? So Mr. Eight Characters and Immortals are not in the same class?

Eight characters are a part of Monday culture, which should be included in simple materialism at present, but some people are keen on studying Zhouyi and exaggeration and should be restricted. However, some people do not admit that it is pseudoscience; Individuals can adopt different needs according to their own psychological characteristics; However, we do not advocate too much superstition and belief;