Is Jesus Real in a Parallel Universe?

My own personal theory would be something like that at some starting point, there is a single universe which is governed by some given set of laws. At every point in time where something could happen one way or another, a new universe is propagated to cover every potential outcome. Repeat ad infinitum, and you are still left with only universes containing possible outcomes of the initial universe.

More or less this.
Otherwise, worlds where this theory is incorrect exist.
Let that sink in.

Under K_A's assumption, the only way any god exists is if
1. The very core world started off by decided what the god was(making "the universe" a super-god, in that case), therefore having infinite possibilities, spawning infinite gods for each individual world.
2. Our world is a lesser reality to begin with, and a god watches over each outcome, deciding which one is "canon".
3. Any mix of the two.