[Mrs. Don-o]

And by the way, since our modern social safety-net system is based on an inter-generational ponzi scheme which assumes a larger number of payers (workers, taxpayers, progeny) in each generation, the common "we can afford not to have children" assumption is unsustainable.

We'll earn that lesson painfully but well between now and 2015.

[steve-b]

Modern economies are driven by technology, not brute numbers, rendering this factor increasingly irrelevant.