Also, don't sleep on Liang's Reinforced Materials perk: as far as I know, completely negates the downsides of Vesuvius besides losing population. "Improvements, buildings and Districts cannot be damaged by Environmental Effects"
sometimes it's nice to be able to settle a lot of your own cities rather than being forced to go to war to take the AIs whilst suffering major slowdown of economic development because of it. its sucks having 12 science on turn 90 because all you could build was units. in the case of zulus i don't think it makes sense however.
