What technologies decrease the minimum liferating needed to colonise an area? I already have machine guns, and I thought that medicine would decreaes it but it didn't.
AND Machine Guns in army tech-light armament.Medicine itself doesn't decrease the life rating, but one of the inventions you enable by researching Medicine (prophylaxis against malaria) does reduce life rating. The other tech that reduces life rating is Nationalism and Imperialism in the Political Thought tree of the Culture techs.
I usually go Medicine>Imperialism>Machineguns, I usually always go straight for medicine because of the nice 50 prestige boost even if i'm not colonizing anyway. And Imperialism is mostly better than machineguns because it unlocks low infamy wargoals usable against uncivs.Regarding this issue, what would be the best sequence of research? Because almost every territory needs the 3 to be colonized. But I know there are a few exceptions