I answered the question in the title of this post on Quora and I wanted to share it with you to see how you might respond to my final question (If you were an all-powerful deity, what would you do first?).
Here’s my answer to the question (slightly edited).
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Sure, the simulation is stored as files and those files can be edited or overwritten. You could even retroactively change the rules involved.
Basically, if you believe in an all-powerful deity, what we have is the equivalent of a simulation. Such a deity could have created our reality 15 minutes ago, providing each of us with false memories leading us to believe what we believe now. Would we know any better?
If I were such a deity in our current reality, here are the first things I would do. First I would uncreate Satan, the Devil, Lucifer, etc and wipe the memories of these entities and their domains from human memory. Then I would adjust human free will, leaving 99+% of it intact but removing the Will to do Evil. Nobody would be inclined to do anything evil from that point onward but we would be free to prefer vanilla over chocolate, choose Toyota over Chevy, even so far as to freely choose to put pineapple on a pizza.
There are many, many things such an all-powerful deity could do … but hasn’t, at least to our knowledge.
If you had such power, what would you do first?
Uncommon Sense 