It created WWI and WWII and resides subconsciously in people primarily women who create it's predicted relationship outcome. It's entirely bogus without any logic on how any of if could be based on a birthday. Created by two crooks that needed to make something of themselves working for Freud. It got the world off track, with nothing else to go by. They were from Austria and Germany. At first I thought maybe check women's biorhythms/relationship comparisons to understand if on it, effected by it. But now it's destroy the concept... present it as bogus ... warn people... they are under it's spell... it's a scourge that needs to be told. http://www.themadscienceblog.com/2013/11/biological-rhythms-and-biorhythms.html?showComment=1460007245101#c5212276653053499932 I figure it was probably a hippie thing... maybe that even brought down the hippie society. Minds on it sway the population into a system that could not ever have been real in the first place.