Is the conclusion of astrology or Zhouyi fortune-telling based on traditional cognition or people's subjective feeling?

My understanding is based on the objective laws of causal changes in various transactions.

Astrology or Zhouyi does not calculate a fixed conclusion, but tells you the law and direction of future evolution. So if you really look at those things carefully, you will find that they don't tell you any conclusions, but tell you what will happen if they really do, and then what will happen. The key is those "ifs". In Buddhism, they are the "fate" that determines the development of karma and the formation of effects, that is, conditions.