Does anyone play the one city challenge option? It appears doomed to failure even at settler difficulty. Most victory conditions in the game are impossible with one city save time, diplomatic, and space. Odds are you will have no where near enough points to win with one city, not eneough votes to win diplomatically, and not enough production to win via space race. Your opponents have no such restriction of course, and freeely build zillions of cities while you can only have one. Thoughts?