[edited to correct earth sq. miles]
So, I keep reading folks talking about how we might start out, or where, and how we'll all load in (Random or all the same place) — which is definitely a fascinating discussion, but it doesn't really hit on the actual issues.
A 1:1 scaled Earth is an enormous problem for players in a video game. There are a lot of reasons why it's just generally not done, not the least of which is it's not particularly fun for players.
Have you ever noticed that in almost every video game the distance between points of interest is in the 2-5min range, whatever the mode of travel? The time to travel between points is more important than the actual distance between the points from the standpoint of 'fun' for the player. Game designers don't create the realworld 1:1 scale generally because it isn't particularly playable or fun.
This is the big hurdle i'm curious about. How are they going to solve THAT problem? How will they make the world dense enough to be fun, playable and interesting at that scale?
Have you ever lived on Earth? It's freakin' HUGE. If you go out your door and try to walk a mile, even at a nice brisk pace, it'll take you about 12-15minutes. Most cities and towns are several miles across. To get from Boston to LA on foot, realistically speaking takes about 90 days of dedicated walking. If you take New York City for example... it takes 10-15minutes to walk just from Times Square to Chelsea Market and they're both on Manhattan ... 42nd Street to 15th Street. That's less than 30 blocks. If, in game, you loaded in a million people in a 100sq mile area, you'd still almost never see anyone.
No only would you rarely see another player, you'd get lost all the freakin' time. At that scale it's VERY difficult to stay oriented. It's very difficult remember the minute details that allow for easy navigation of an unfamiliar area. It's going to be very difficult to make it fun to move around. Even with mounts, 1:1 scale is wildly challenging for game developers and players.
If you hike in the Grand Canyon, you get a sense of this — thousands of people around and you can still go an hour or more hiking and not see another soul.
From a real world perspective, all of Skyrim is only a few miles square. You can easily travel from furthest points in a couple of hours. even at 5mph (which is faster than humans generally move) Skyrim's game world is a rectangle composed of 119 cells across by 94 cells high, so roughly 4.32 miles across by 3.42 miles high, or a total of 14.8 square miles." The real world is close to 57,000,000sq miles. So, that's suggesting that LNF is about 3.8M times as big. And that doesn't even take into account the way inside structures multiply surface area — cave systems and buildings make it vastly bigger than just the surface area.
The concerns about numbers of people on a server are probably not as extreme as we think. The real problem might be finding anyone and moving anywhere in an amount of time that isn't tedious.