I well remember trading overnight repos, between 24% and 25%. I recall 91 day paper (treasuries) at 21%.
When I see those rates again, I'll consider "runaway interest rates".
Which simply is further evidence of SS being a Ponzi scheme. When Ronnie-the-Commie Reagan put withholding taxes at 15.3%, it was stealing from "boomers" to fund the "greatest generation".
Yes, the greatest at stealing from their children .... and to certain extent their grandchildren.
If "boomers" had had their funds invested at prevailing rates, the majority would be multi-millionaires at this point in their lives.
Theft through government Ponzi scams.