I'm not saying "for each player, they are able to experience a sense of wonder in a game when played in isolation", that's old hat. I'm saying "for all players, everyone experiences a shared sense of wonder and discovery in an artificial world they live in together".

I've never played Elden Ring, yet I couldn't help but see the community make new discoveries together. The first couple of days every post was about Margit, then a few people found the fake wall that hides an entire zone, and a month later someone has reverse engineered the levels and found a wall that takes over 1000 hits to get rid of.

When the binary is entirely hidden from the users, and the only thing the users have have access to is a window peering into the world as you want them to see it, you get to create an entire set of physical laws that is hidden from the players. Players have to work together to conduct experiments, peer review each other, compete with each other, and become experts in very narrow fields of research within your simulation. Imagine spending months as a community raising in-game funding and developing the technology to sail/fly/launch to a New World for the first time, and when you finally arrive you know you are the first set of players to ever see it, specifically as a result of your efforts.

What you're describing is a neat little one-off escape room experience. What I'm describing is an actual world. We currently cannot do this.