Okay Explain how inFamous is possible?

It seems like a paradox to me. Because in the first games it ends with Kessler going back in time to prepare Cole to fight the beast because he ran the only time he had the power to fight it?. But in the second game you find the John is the Beast and also he wasn't even trying to hurt anyone, he was only confused. Also the only reason John turned into the Beast is because the Raysphere blew up (evil ending) and he had to pull himself back together. So why didn't Kessler just go back and stop the Raysphere from ever getting to Cole so that he never gets the chance to blow up a second one and make John become the Beast. Its confusing right? Not only that but in the good ending of the second game Cole dies, so how can he go back and be Kessler in the first place. Does that mean that the true story line is when you are evil? And if that's true than how can Kessler's wife (Trish) die because the only way you get back with trish is by being a hero. Not only that but on the Evil finish of infamous 2 Cole actually becomes the beast himself, so is it like Cole going back in time to warn himself about himself, which isn't possible because if Cole is the Beast that means that he killed Kessler s family (Cole's family), but by the time Cole is the beast Trish is already dead and they didn't get married and have kids. If Kessler went back to make sure the raysphere was never made than none of this would have happened and everyone would live a normal life, because there would be no Beast, no plague, and no evil Cole ( which is apparently the real Cole because the only way the second game makes any sense is if Cole was really evil in the first game. EXPLAIN THIS MADNESS