CommanderSock CommanderSock:
Keep the immigration doors open to keep supplanting the population with youngsters from developing countries. Stop grannys from being brought in though.
It would take a quadrupling of immigration numbers, ie 1,000,000 a year to reverse the demographic trend in this country. And what happens when those immigrants get old? All you'd be doing is pushing that bubble, which would be much bigger, down the road. At some point the world has to face up to the fact it can't keep growing its population to get out of economic trouble, learn how to live with a stable population.