midid chlorians is ullshit the whole point of the force is that is a mysterious power that should not be comprehended by science. also anakin/vader proves he is the chosen one in rotj by killing the emepror and bringing balance to the force. it is just that the jedi council didnt forsee that the chosen one wouldnt first turn to the dark side wrek havok for acouple of decades and then fullfill his potential.