I've been reading the first section on the front page, and thinking that there's something intrinsically wrong in the argument of "Demographic Vibrancy" and I'm sure it probably comes down to Peak Vibrancy. sooner or later you're going to hit a peak in your elderly population, unless you can either keep breeding faster, or import more people. Sooner or later you're going to have a hump in the numbers of elderly, unless for some reason you can see that your population is limitlessly supportable. by pushing the Idea of Demographic Vibrancy, all you're doing is pushing that hump a few years down the road, and making it a bugger problem when it happens.

Any idiot can face a crisis - it's day to day living that wears you out.