Your hypothesis is very similar to religion in the sense that it COULD be true and can't be disproven, but there's no valid reason for believing in it.
It's still more valid than a mystical figure.
Although god could technically be some "alien" computer programming nerd who has a computer sophisticated enough to generate a fictional universe and considering how the universe is infinite it's possible his computer is generating a never ending loop of what we perceive as the universe.
We are just some science experiment. What seems like years to us it's only seconds to the computer programmer.
There is a theory that our universe is a computer simulation which does make sense too. This might mean there is no life on other planets.
