Massive virtual science fiction worlds all tend to revolve around a similar core concept. If they weren't made by aliens, then they must have been made by AI. Movies like The Matrix or shows and books like "3 Body Problem" all use this crux as a way to explain how a human with finite resources could somehow make something that feels so infinite.
Look at any of the biggest games, and you'll quickly understand what I'm talking about. GTA V, The Legend of Zelda: Tears of the Kingdom, and Starfield all feature massive virtual worlds that eventually end and largely have some sort of odd restrictions within them. It all comes down to a real-life three-body problem: human time, skill, and money.
