There may be no loss for individuals, but for a country, it is still necessary to be cautious.
For example, China now holds more than 500 billion US Treasury bonds (we bought 2 trillion global bonds and 500 billion US bonds, but these are not very accurate). It used to cost 35,000 yuan at the exchange rate in 8 yuan. But now in the global financial crisis, the exchange rate between RAB and US dollar is 7 yuan RAB exchange rate 1 US dollar, so the US Treasury bonds we bought are worth 3 trillion RMB, with a loss of 500 billion RMB, which is very heavy. So some time ago, China was talking about reducing its holdings of US Treasury bonds. But we can't buy US Treasury bonds, because our trade relationship with the United States has been closely linked, and the US dollar is the global currency.
We can buy US Treasury bonds by asking the United States to use some valuable things such as gold!