See, this is actually kind of interesting. J.R.R. Tolkien had a theory about man being a "sub-creator", and that we create because we are made in the image of God.
I think our concept of "simulation" is that divine nature bleeding through. It's not that we're not real or a simulation, but our concept of a simulation is just a mimicry of reality in more than just results.
Our concept of programming and simulation (through language and code) is our less real attempt at mirroring God's method of creation though speech and language. "let there be light" and such. I mean check out the worldgen system of dwarf fortress, and see how much it mirrors Genesis.
Imagine the implications of Procedural Generation and time lapse with the story of creation.