Currently the civic Slavery is the top choice in the second category. Only one civic allows using population for production; Despotic Rule, which is not researched until roughly the third quarter of the game. I personally think that adding this ability to Slavery would make for a more interesting early game. The only issues are that this would give an ability to a starting civic (something not in the normal game) and that it would give two civics the same ability (which I don't think is a big deal). So, here are the questions: 1. Should Slavery enable using population for production? 2. Should Despotic Rule retain the ability or lose it?