It's government bonds that are the ponzi. To save the dollar from collapse after the default from the gold standard early investors were promised 15% returns which would magically come from somewhere. Somewhere being the increasing debts of later entrants who have to borrow more and more to buy the same house. They only keep that ponzi going by offering less and less return with the threat of inflation.

Bitcoin now offers an alternative and will bring an end to their scam.