One of the internal functions of the game is Adaptive Expansion - the ability of the game to self-regulate to some extent to handle increasing player load. Ideally, this will do things like ensure that while limits exist, they aren't insane in either direction - so that there might be room for fifty characters at a particular location when one hundred people are playing the game, and several hundred by the time the thousandth player joins. These systems should be designed so that they can be adjusted externally as necessary, but so that the game needn't become horribly unbalanced in the meantime (for instance, if only ten people could stay at the inn, and there were over one thousand characters…)