While some of the ideas are very interesting, I have to strongly disagree about the "balance of the force" means numerical superiority. Although there were two lightside(Yoda and Obi-Wan) and two darkside jedi(Palpatine and Vader) at the end of ROTS, They aren't equal in any way. Clearly the Sith are running things. How is it "equality" when you have sith oppressing the galaxy, enslaving entire races, building death stars, and blowing entire planets full of people away while the good side are forced to hide to keep from being killed themselves. Having the sith in charge isn't any sort of "balance". The way the prophecy was mis-read was that no one figured that the chosen one would become Vader before ending the Sith.