Yes, you do. If it's a map of the entire world and you walk North just past the edge of the map you don't wind up someplace entirely new that's not on the map. You wind up at the southern end of the map. Unless you want to count for the innacuracies of world maps due to the limitations of printing a round world on a flat surface, in which case the exact same thing could be said to the RPG world map.Not if you're actually travelling the map, you don't...