The most virtuous cycle of the world's economy is 1. U.S. debt continues to increase to support strong consumption by governments and households 2. The United States' continuous increase in imports and increased trade deficit 3. The surplus countries have huge foreign exchange reserves to increase their holdings of U.S. Treasury bonds 4. The United States maintains low interest rate zero interest rate Treasury bonds with low cost financing However, none of the above four points can last for a long time Therefore, the world economy will inevitably reach a dead end ——Xingtianfengxiong