"Should be" in this case seems to indicate only opinion, not a predictive and falsifiable hypothesis based on observation. It "feels" like it should be true; This is not a useful viewpoint in science. Why assume that older civilizations are more expansive than young ones?
Originally Posted by kzb
I'm a cynical optimist. I think the only way out is through, but once we get through it'll be better. Very different, but better. Howard Tayler
It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change. Charles Darwin
Power, Lord Acton says, corrupts. Not always. What power always does is reveal. Robert A. Caro