In Elder Scrolls Online, I started my character in the Ebonheart alliance. Now I'm level 20 and have visited into neighbouring areas out of curiosity, discovering level 48 characters and similar. By neighbouring areas I am still talking about the areas in the Ebonheart alliance, up to the right in the global map.
Does this mean that the areas I play in now, around Morrowind, for the Ebonheart alliance, is completely separate from the two other alliances?
In other words, are there 3 completely separate areas, and the only place I will meet characters from the other 2 alliances is in the PVP zone?
Or do I need to travel to one of the other areas in time to further level up and continue playing?