The only somewhat reasonable hypothesis I've ever heard about how astrology might work (if it did) is the clock hypothesis. The idea is that the stars have noth

The only somewhat reasonable hypothesis I've ever heard about how astrology might work (if it did) is the clock hypothesis. The idea is that the stars have nothing to do with it in a causal sense. Ancient people just noticed certain patterns and correlated them with the stars because stars were what they used to keep time. The real causal mechanism could be some kind of biological cycle or something else.