Morning Scepticism: Astrology

It would have to be out of desperation that anyone would leave important life decisions to some chumps vague interpretation of stars and planets. I can appreciate that life sometimes seems out of control, that there's confusion over what to do and the need for assurance over life-changing decisions. But astrology is pure interpretation and from a really tenuous source at that. How could such a tenuous source of validation be anything other than temporary and fragile?