"Ultra Smart" for us, but base reality Humans (plural) advanced millions of years beyond us should easily be able to create simulations to analyze alternate progressions.
Ahhhh, so your God is technology. Though somehow our "true selves" have managed to simulate consciousness in us but avoid an AI singularity? Very interesting religion you got there.
Personally i think we are base reality. But there's a real probability of living in a sim. I don't think an AI singularity will happen, but if so the AI would be running the sim(s)