This is actually a topic I read and think about. You did great explaining it.
If this is true it has a lot of implications in how we see life. I also think about different reasons we would be here (if we where more then only a digital identity). Maybe the AI didn't put us in unwillingly, maybe we are just a person playing a game. For the game to be interersting we have to forget there is life beyond here.
Also if we are in a digital world it would be interesting to find out if we are able to change the rules from this perspective. Clean the waters for example or rewrite diseases into something fun.
All if that is theoretically possible yea, and it's a fun idea to think about. Who knows maybe we'll find a bug in their crazy calculations and suddenly the sun becomes green or something... :D