The treasury bond of the United States has exceeded 40 trillion dollars. Musk said on the Internet that only AI and robots can solve the US debt problem. Many people's first reaction is that this guy is advertising his own robot again. But if you really take a look at this account of the United States, you will find that he is not joking this time. They were forced into a dead end and could only pin all their hopes on a robot that had not yet been manufactured. What is the concept of $40 trillion. After deducting the internal accounting of the government, the actual amount that needs to be bought with real money from external investors in the market is 32.27 trillion yuan. This has already included the entire year's output of the United States. Spread evenly among every American, from a baby in swaddling clothes to a 90 year old lady, each person carries 97000 US dollars, equivalent to over 600000 RMB. The most deadly thing is not the principal, but the interest. In fiscal year 2026, the US government is expected to pay nearly 1.2 trillion US dollars, or 3.3 billion US dollars a day on average, just to repay the interest on treasury bond. Put it another way, you feel that if you sleep for eight hours at night, the United States will owe an additional 1.1 billion. This is the first time in American history that interest payments have exceeded military spending. The cannon and promissory note are placed together, and now it's faster to spend money on the promissory note. Even more troublesome is borrowing new and returning old. The average coupon rate of treasury bond in stock is only 3.4%. When old bonds are due, new bonds will be issued, but the long-term interest rate demanded by the market has soared to more than 5.2%. Every time the promissory note is changed, the bill jumps up one step. The conventional methods have actually been tried long ago. Confiscating all the assets of the super rich in the United States amounts to only over 8 trillion US dollars, which is only enough to offset 20%. The money saved from cutting administrative expenses is barely enough to cover the annual deficit of 2.1 trillion yuan. So Musk's deduction is that if the three paths of taxation, saving money, and issuing bonds are not feasible, then we can only rely on a supply explosion. Wait for robots to enter the factory to work, mine and build their own machines, and maximize production efficiency. As long as the growth rate of output exceeds the rolling interest rate, the proportion of debt will be diluted. This logic sounds beautiful, but it has two flaws. The first one is that the time on the two watches does not match. Yuanshui is a robot still interning in the workshop, while Jinhuo earns interest on a daily and quarterly basis. By 2026, humanoid robots will still be learning to screw in the workshop, and large-scale deliveries may take until 2027 or even longer. To start the factory, we have to queue up to buy transformers, gas turbines, and copper, all of which have long construction periods. Robots build production capacity on an annual basis, while interest rates roll on a daily basis. The second flaw is even more heart wrenching, as AI itself is one of the biggest borrowers. JPMorgan Chase has calculated an account. From 2026 to present, the five largest cloud computing companies, along with Nvidia, have issued approximately $320 billion in bonds, with the long-term portion being converted into a ten-year term, equivalent to 68% of the US Treasury Department's new growth loans during the same period. The Dallas Federal Reserve's estimate is more direct. If AI related investment grade corporate bonds are issued to 300 billion in 2026, the interest rate pressure it will bring will be equal to the 10-year treasury bond bonds of 360 billion dollars at most. AI is not helping the United States repay its debts, it is one of the main sources of debt itself. Tech giants and the Ministry of Finance are now competing for the same batch of long-term funds. The first reaction of the Ministry of Finance is to buy its own bonds. In recent times, the yield on 30-year US Treasury bonds has surged to 5.34%, the highest since 2007, a figure not seen in 19 years. The next day, the Ministry of Finance could not sit still and urgently doubled the repurchase ceiling of long-term treasury bond from 2 billion to at least 4 billion dollars in a single transaction. No one is willing to buy long-term IOUs at a cheap price anymore, so they have to pay out of their own pockets and buy the old ones back. There is a detail that speaks volumes. The day before announcing the increase, the Ministry of Finance conducted a $2 billion repurchase as usual, resulting in nearly $20 billion in sell orders. Ten people lined up to grab a spot for a buyer. Is this kind of action effective? Just calculate the account. A plate worth 32 trillion yuan, buying an extra 2 billion yuan per transaction, is equivalent to carrying a mortgage of 1 million yuan that you can hardly bear anymore. The bank nervously announced that I will help you advance an additional 62 yuan per month. The only thing it can buy is a few days of breathing. Even more embarrassing is that the US government has held down the interest rates on the books, and the hard accounts in ordinary people's lives are not cheap at all. The 30-year mortgage interest rate is still stuck around 6.7%, and the prices at gas stations and supermarkets are equally heavy. The Ministry of Finance can buy back old promissory notes, but cannot build a refinery. Overseas buyers are also withdrawing. China's holdings in July dropped to $618 billion, the lowest since September 2008. When the US treasury bond has to rely on the Ministry of Finance for its own support, no one is willing to stand in front and be the receiver. The United States has written the ultimate solution on a robot that is still interning. Reality forces the Ministry of Finance to rely on buying IOUs to demolish the east wall and make up for the west wall. The kind of super manufacturing capability they crave, to quickly produce physical objects, power plants, production lines, and heavy industrial equipment, is not in Washington's financial toolbox today, but in the roaring Chinese workshops and power grids on the other side of the ocean day and night. The story of robots can be told beautifully. When high interest rates tear apart the national ledger step by step, the real thing that can sustain the operation of a great country is always the tangible and visible physical industry.