>require a much (much) larger societal unit to be really effective. Larger, yes, and also I might add smarter. When groups that are not so smart get larger the

>require a much (much) larger societal unit to be really effective. Larger, yes, and also I might add smarter. When groups that are not so smart get larger they're prone to politics and/or corruption and/or infighting. Nation states are a classic example.