I just stopped sharing the document. I was just running it over crappy cafe wife for 2.5 hours, max ~20 people, always 5 to 10... performance seemed fantastic - didn't tax my lappy at all. Very impressed!

[Re-shared it at 28e6c3b4-754c-44ef-9406-869604db9db5 - it would be good if you could keep a UUID somehow, but I guess that's unfeasible]

Someone please build a game around this premise. 15+ people having fun in a shared simulation is prime territory for game ideas.

Which premise? Isn't that just re-inventing multiplayer gaming?

Or do you mean targeting web games, much like was discussed in this HN post: https://news.ycombinator.com/item?id=13264952