> I think that's more of a side effect of a population increase. I don't think so. Cities are much more efficient for the masses. If you have 20 people that

> I think that's more of a side effect of a population increase. I don't think so. Cities are much more efficient for the masses. If you have 20 people that all evenly dispersed within 20 square miles, or 20 people within a square mile, more progress can be made in the square mile.