Best strategy for incremental development of a very large world and what are the limiting factors of large world development?

@AntiGravity Why would there be issues with collision or physics or animations? My understanding is that those were caused by the coordinate system not being precise enough, which is not the case now. It can literally support millions of km with appropriate precision, so there is no way it can’t support a few hundred or thousand km. Would you care to provide more reasoning to back up your claims? Otherwise, I fail to see how you are not the one making assumptions. I appreciate you taking the time to post, but if you aren’t actually going to provide info then why?

Also, @MostHost_LA said that my numbers were obviously wrong but didn’t bother to explain which numbers or why it is obvious. I’m trying to get objective information here.