I think the population distribution by age band in the different eras would illustrate why there was enough money then and insufficient money now. The premise

I think the population distribution by age band in the different eras would illustrate why there was enough money then and insufficient money now. The premise wasn’t that you the worker would pay your own retirement but that you would pay for the current crop of retirees and then when you retire the younger age bands would be paying for your retirement. If the worker would be funding their own retirements then they have to pay in a whole lot more.