I see no intention from governments of ever paying off that debt. All I see, worldwide and US is more and more spending. At one point in the future we won't be able to pay for it anymore. So, what happens if everyone finds out they're not getting their money back? i hope we never find out.

30% of US debt is owned by intergovernmental agencies: like Social security/medicare/military retirement funds - so that might go down the tubes.

The other 70% of US debt is public debt, of which almost half is owned by foreign governments and investors.

https://www.thebalance.com/who-owns-the-u-s-national-debt-33...