>But if the currently-working people are unable to support the retired ones, no financial magic is going to fix that. Well, there is a way to work around this:

>But if the currently-working people are unable to support the retired ones, no financial magic is going to fix that. Well, there is a way to work around this: to invest into foreign assets. In other words, domestic retirees will be supported by people working abroad. This approach certainly has its risks, but even before that the modern US is the biggest world debtor, not creditor.