Astrology

So what is it with astrology? Am I to believe that something written by someone who doesn't know me is likely to be accurate about who I am and what I think and what will happen to me? (Okay - what is likely to happen to me is determined by a load of blokes in suits in Westminster but that's by the by). How can anyone think that when they were born can shape their ideas and views and personality? How does all that work??? If anyone is interested my birthday is in early August (so start saving now for cars and presents) and my birthsign is Tupperware on the cusp of Absolut Blue - that help?