Several years ago AARP magazine had an article on how the Social Security program was NOT a Ponzi scheme. It went into detail on how a Ponzi scheme worked and showed how they all collapsed. Because Social Security has not collapsed it is not a Ponzi Scheme.
Several pages later there was an article by Jane Bryant Quinn on Social Security and how it worked. Her definition of it’s workings was just like a Ponzi Scheme although she did not say it.
aarp? They have a magazine? Dedicated to all things socialist? Obiecare, guncontrol. But you can get your car towed. Or was that AAA.
Ponzi schemes fail because you run out of victims willing to give your their money. Social Security hasn't failed (yet) because the victims don't have to be willing to give you their money - they are forced to give it at gun point.