at this point, you may wonder what happens if inflation goes up even more?! oh no! in 10 years i will be poor. how do i get rid of this treasury and get my money back? well, that's the treasury market. people can buy/sell their treasuries before they have matured... before the government has repaid the treasury. as you may have guessed, treasury demand is inversely proportional to treasury yields. if i have a treasury which only yields 0.5% and yours is 5% for the same maturity, nobody wants mine. they want to buy yours.  when demand overall is low, because inflation has rocketed, then yields must rise, or prices on treasuries fall. when inflation rises, it has a very pronounced effect on the wealthy. unlike your pleb dollars sitting in a bank, the value of their ious, their treasuries, are valued on an open market every business day. they can watch their net worth rise and fall with inflation.
Japan