Perceived surface area is relatively insignificant - Minecraft is already at least several times the surface area of the planet (details vary by version) even if it's much simpler and vertically constrained.
And how it relate to the average MMORPG.
That guy's been doing it for quite a while.
> At the end of that most recent FLoB-ATHON Weekend in 2015 we discovered that I was 2,266,779 blocks in the furthest 'Z' coordinate, the equivalent of 2,266-kilometers from spawn! Amazing, yes, but it means we are still only 18.06% of the way to reaching the Far Lands located at 12,550,820 meters! They don't call them "far" for nothing! INDEED!
In fact it's now baked into the vanilla game as a command.