Do you realize this argument works for any X and X+k ? I assume you are not thinking that an infinite number of people would get along just fine, so clearly the

Do you realize this argument works for any X and X+k ? I assume you are not thinking that an infinite number of people would get along just fine, so clearly there are some other constraints. It may well be that those constraint kick in at a higher number than many assume, but it might as well be smaller.