I'm still new at this game and feel the time between 4000BC and 2050AD is too short to enjoy the units in their time periods. What's the sense of building knights if shortly I have riflemen and machine guns? It seems by the time I get my cities to the point I am only building military units, it's the 20th century already so when the game reaches 2050AD and the victory message appears, I feel like I'm just getting started so I continue playing. But I noticed less activity happening like seeing other civs going to war with each other or me. Though I'm still able to pick fights and play, it seems more quiet than prior to 2050. I even see other nations very undeveloped with only a few military units in their cities well beyond 2150AD. Is it worth playing past 2050 or am I wasting my time if I would like other Civs to be as active as they are during the "official game time"? Edit: I'm referring to playing BTS by the way.