I'll probably find out soon. Playing Alexander, started in the middle of a Pangaea map with 20 civs (more cities to conquer) and I'm conquering by moving my army in a circle around my capital, Gandhi is three civs away as far as I am aware, and I am already at war with both of those two in between. Also, he had the balls to build a city right next to my capital (though I do have to admit I haven't built a single Settler myself...).