There is another trust fund issue and it is the one related to the expected increase in the ratio of retirees to workers over the next couple of decades. This would presumably cause a net drain on the fund since payments to retirees might increase relative to tax revenues.
This is actually the specific phenomenon to which many people are referring when they say that Social Security is going to go bankrupt. However, a) there is no guarantee this will occur since rising productivity could drive up wages sufficiently to compensate (although our trend of stagnating wages relative to profits is frustrating this) and b) even if that did occur, this hardly means that Social Security is kaput. Any shortfall can always be addressed in a very straightforward and supremely logical fashion: raise taxes or lower benefits (and it is exceedingly like that even if this occurs, we arent talking about anything drastic).
It bears emphasizing, however, that such changes would still be a function of productivity and have absolutely, positively nothing to do with how much money we have or havent saved up. Funding, finances, money, taxes, etc. are part of the coordination mechanism, not the feasibility.
The lesson from this is that if we want Social Security to be there when we retire, our efforts must be focused on increasing productivity and making sure in particular that these increases get passed on to workers in the form of higher wages.:biggrin::biggrin: