When 40 billion of treasury bills are sold like, seven day treasury bills, at a yield of 1/20th of one percent, that means the whole country is basically at the point virtually, or a lot of the country is at the point of putting the money under the mattress.
In an inflationary world, a toll bridge (like company) would be a great thing to own because you've laid out the capital costs. You built it in old dollars and you don't have to keep replacing it.
Investors, of course, can, by their own behavior make stock ownership highly risky. And many do. Active trading, attempts to "time" market movements, inadequate diversification, the payment of high and unnecessary fees to managers and advisors, and the use of borrowed money can destroy the decent returns that a life-long owner of equities would otherwise enjoy. Indeed, borrowed money has no place in the investor's tool kit.