Bottom line, is that both societies depicted would be vulnerable to some sort of threat. Both societies seem heavily stagnant. Such societies can easily be disr

Bottom line, is that both societies depicted would be vulnerable to some sort of threat. Both societies seem heavily stagnant. Such societies can easily be disrupted by their relations with friendly and hostile neighbors degrading or just being wiped by an gradual or extreme environmental change (for example meteor). The only way forward is by having diverse societies spread around multiple planets in various parts of galaxy.