>>11435625>largest cohesive size a colony1,000 people, beyond that and it won't be nearly as "cohesive." Though that word is a bit of a weasel word since you are not stating exactly what that means. I'd assume social cohesion.
>too big to be enjoyableThat's really a personal opinion without a good answer.
>efficientThat has nothing to do with the size of a colony.
>minimum size a colony10,000 for best genetic diversity.
>>11435635That's really more about having "safe spaces" where people can go to relax without being around other people or other groups for x amount of time during their time off.