Timelines, points in history where if one thing were to change, if one variable were to be made different. Then it would create a whole new world. A place differing in the slightest and greatest of ways.
It was a theory that was popular among many. Commonly known as the butterfly effect. Where the flapping of a butterflies wings creates a tornado across the planet.
But that was not what I was dealing with. A person that could control that would be akin to a god. Omniscient in his ways.
No, what I was dealing with was a person with control over his own timeline. Or at least that was the leading theory I had.
It was one of them at least. What I believed to be happening was not that he was reversing causality or something. But creating a point in time, where he would superimpose himself. Creating two versions of history that play out slightly differently, then somehow, he would observe the one he wanted and that one would play out in reality.