I read somewhere (yeah, what a great way to start a thread ) that welfare states can only function and be adequately funded if the proportion of workers/ taxpayers significantly exceeds the proportion of dependants on that welfare state ie: those 'paying in' are quite a bit higher than those 'taking out'(I forget what that critical proportion is - this OP gets better and better, doesn't it?). But with spiralling UK NHS (if in the US substitute Medicare and Medicaid) treatment costs and an ageing population (4 workers for every pensioner (in the US think Social Security costs) now, only 2 by 2050) - to mention just two (albeit highly significant) trends, how much longer can the welfare state survive? Will historians look back in 50 years' time and view the concept as a 60 year blip/ anomaly in the history of western Europe and North America?