What characteristics does Rick Perry have in common with a Ponzi Scheme?
Seriously ... I probably would not vote for Romney (yet good for him) for being patriotic and cerebral enough on economics to understand and speak intelligently of Ponzi Schemes. He is intelligent and seemingly patriotic by distant observation.
Social Security is not a Ponzi scheme. Social Security invests its money in treasury notes. ( I do have separate issue regarding the FR and treasury) ... yet no more than other means of investment.
In fact, the only thing Social Security even remotely has in common with a Ponzi scheme is that Social Security pays benefits out of current receipts.
What else $ pays out of current receipts ... life insurance and auto insurance.
Lets see corporate dividends pay out of current receipts and 401k and IRA disbursements.
... and your pay check if you are employed ... !