The answer is much simpler, there used to be much less elderly per working person (and that only covers modern times, too, in a country with massive in-migratio

The answer is much simpler, there used to be much less elderly per working person (and that only covers modern times, too, in a country with massive in-migration of new working people; plus it's obvious it's going to get worse): http://vis.stanford.edu/jheer/d3/pyramid/shift.html http://vis.stanford.edu/jheer/d3/pyramid/shift.html That is also why Social Security seemed like a good idea at one time.