Well, if Adam Smith says to pack us into the country like sardines than that's just what we should do.
We may run out of fresh water, food, energy resources, prison space, landfill space for our trash and have accumulted a $100 TRILLION dollar National Debt trying to pay for it all, but if we haven't reached the point where marginal cost and marginal benefit meet, we should just keep on barreling towards oblivion.
Pure economics without a lick of common sense, sounds like a recipe for pure hell on earth.