So I've run through a couple of Civ V games now, playing as the Arabs, the Romans, the Indians, the Germans, the Egyptians, the French, the Japanese. I typically play on prince or king difficulty for the following reason: EVERY time I start out great, dominating the early game, getting some (or all, in Egypt's case) of the wonders, generally holding on to all my cities, etc. Then, in the late Renaissance to Early Industrial age, it all comes to a SCREECHING halt. It's like my people just decide they don't want to build or research anymore. In the Rome game (ten cities or so), things lasted til the late Industrial/early Modern age before I was forced to build so many production enhancers just to keep my cities running that my economy collapsed. In the Egypt game (five cities), as soon as I hit the Renaissance I couldn't build wonders anymore; it was like my wonder modifiers just disappeared (I had the wonder SP and marble bonus too). German game (14 cities) my sprawling empire did fine until the early Industrial, when my economy got to be such a drain that I had to disband my entire army. My point is, I don't think I'm making the same mistake every time. I specialize my cities, I make sure the cities use all the specialists they can. What am I doing wrong? Cuz every game so far has ended with my people sinking into a lazy stupor, slowly losing technological and cultural leads, or collapsing financially and militarily and being conquered, usually by the Chinese. PS I'm running on a mac. Dunno if that's pertinent.