2. Second Introduction: Basics of Modern Monetary Theory
4) It's probably possible to finish paying off the debt earlier than between 2044 and 2047. If legislators begin to see early that the reforms are working, then they will be able to plan future spending and taxation in accordance with the limitations I have outlined.
It would cause U.S. markets to become subject to rigging of markets in favor of that creditor nation / chief trading partner. It would be a market captive to China. We must not allow ourselves to be lulled into such a "false sense of economic security"; especially not if China's goals are dependence on Chinese products, and seeing the Yuan replace the Dollar as the world reserve currency.
We must not risk depending too much upon China (nor upon any other country which could potentially become simultaneously our primary creditor nation and our primary trading partner). Depending too much on one country, for both goods and loans, is a recipe for economic ruin for the debtor nation (in this case, the United States).