When I said that the SS system was a Ponzi scheme I definitely was being a bit disingenuous. Maybe I should have added an

emoticon.
A COUPLE of points:
1) Whether SS was ever meant to be a person's sole retirement income or not is really completely irrelevant to the question of whether it is a Ponzi scheme. Was the money invested with Madoff or the Villalobos Bros. meant to be the investors' sole source of retirement income in all cases? However, it IS a good point that whatever SS was meant to be, given the unreliability of future benefits it would certainly be a good idea to have some back-up source of income now more than ever.
2) A much shorter life expectancy beyond retirement age at the inception of the program than what exists today DOES have a bearing on the SOLVENCY of the program but does NOT really change the fact that the earlier "investors" received far more in benefits than they ever put in even figuring on some reasonable return on their contributions. Ida May Fuller was the first social security recipient. She paid in a total of $24.75, retired in 1939 (after working just 3 years under SS), lived to be 100 years old in 1975, and in the process collected $22,888.92 in benefits (nearly 1000 times what she put in). In contrast, even without a long retirement life, its highly doubtful that those paying into the system today will ever receive anything close to a reasonable rate of return on their "investment" assuming the SS system doesn't even go bankrupt.
3) So what if Medicare was not part of the original plan? No one was specifying anything about the Medicare program and it is the SS program itself which has been described by some as the "Ponzi scheme".
4) The fact is that, as the SS system is currently structured, current contributions go LARGELY to paying earlier participants. SOME of the money, probably a large part but certainly not enough, goes to building up the reserve for when those current contributors retire, but its mainly invested in relatively low yield US govt. bonds which are used to finance or federal govt budget deficit. So the rate of return on past contributions is far less than what would be needed to cover current benefit amounts, ESPECIALLY considering the likely period those benefits will be paid out given current life expectancies.
5) The definition of a Ponzi Scheme is "a fraudulent investment operation that pays returns to investors from their own money or money paid by subsequent investors rather than from any actual profit earned." The last part of that definitely applies to the SS system even if SOME of those returns did come from actual profit earned on your own contributions. Most of what is being paid now is coming from the current contributions of OTHERS. HOWEVER, the first part of that does NOT really apply to the SS system, namely that there is anything fraudulent about what they are doing or where they get the money to pay benefits. A lot of people may not REALIZE how it actually works, but that is not the fault of the government and their goal with the program is not to fool anyone or to make some illegal personal profit. So the SS system is not REALLY a Ponzi Scheme. Call it "Ponzi-like" in some respects.
6) IF there was no cap on SS contributions after earning an arbitrary figure each year and IF Congress did raid the SS trust fund and, to be fair and make all parties pay equally, IF the retirement age was made later to reflect longer life expectancies and IF there was a lower cap on benefits PAID to higher income retirees with other sources of income, the SS system WOULD be more solvent. But that wouldn't change the fact that current beneficiaries have received more than their contributions really earned.
7) When I criticize the SS system, I'm not faulting any of the current beneficiaries who are taking advantage of it. If I were in their shoes, I'd be doing the exact same thing. Even for me, I'm close enough to retirement age and SS should last long enough that I should get some halfway reasonable amount out of it. In order for that to happen however, the contributions of the younger generation will have to go to pay my benefits since there is probably not enough in the SS Trust Fund to cover it and there won't be anything put away for them. If you look at it objectively and remove your personal bias because you happen to benefit from the current system, most people would see how incredibly unfair the SS system is to the younger generation. (I notice none of the solutions offered by ID would effect the amount HE paid in or will get out).
8 ) ID and I actually had more than just a "couple of points"