>>516654082 (OP)
Just borrow more.
Last year the US borrowed 1.8 trillion dollars, of that 800 billion dollars was used to pay interest on the debt.
So what this means is that nothing is being paid. Like ever. This is why the debt grows so fast, not because anyone is being taxed to death to pay for it.
Its essentially a tax disguised as investment. The money comes from pension savings and from surplus private profits, that is company profits that the business class has no use for as investment or for consumption.
The money is given to Vanguard, and they pass it along to the government. The total passings are annotated in a book and this is what you call debt.
Its owed to pensioners and to business owners, of both public corporations and of the "private equity" type (companies that are not corporations) that make more money than they need.
Would it kill them if that money were to not be paid? It was literally lent because there was no use for it. These are excess profits. Profits nit spent on direct investment or consumption, it just gets stashed.