That's a great point and yes I do think that God could absolutely have created the world in this manner. I very much believe that the universe was created by an intelligent designer. However, I also believe that it's possible that things like the multiverse, life from other planets and other dimensions not accessible to humans were part of the creator's overall design-a design that is much larger than we could ever hope to learn of during the extremely itsy-bitsy blip of time that mankind has and will ever exist. Why would an all-knowing, all-powerful being or entity limit itself when it comes what and how much it will create? Just a few short years ago, we didn't know for certain that there were planets around any star except our sun. Now, we know that not only are there other planets, but it is more the rule to find the as opposed to the exception. There are over 1 billion trillion stars withing sight of our best telescopes. What makes us so special that all of these other stars and planets would be left lifeless and without intellence. Afterall, God in the Bible seems to be extremely envolved with mankind and even wiped out all but a few when he didn't like what they had become. I think the Creator of our world may be one that learns from his creations and improves upon it. Mankind 2.0 is probable somewhere out already.
RE: Is Our World A Simulation? - Holographic Cosmology