What if the real danger in public finance is not the dramatic crash, but the quiet habit of surviving each warning just enough to ignore the next one? That is the awkward position governments have reached. Deficits keep running, debt keeps climbing, and yet bond markets have not forced an immediate reckoning. The absence of panic is mistaken for permission. In markets, as in nature, a system can look stable right up to the moment its hidden stress fractures give way.
The old bargain was simple: governments promised restraint, voters tolerated it, and bondholders acted as the final referee. That bargain has thinned. According to recent reporting, the US federal budget deficit is projected at roughly $1.9 trillion for fiscal 2025, about 6.2% of GDP. US debt-to-GDP is projected to exceed World War II levels by 2029 and reach 166% by 2054. Interest costs are projected to hit 3.3% of GDP in 2025, the highest since 1940. These are not minor slippages. They are the financial equivalent of a bridge with visible rust in the joints.
The New Normal of Missing Discipline
The central illusion is that deficits become harmless if they are familiar. They do not. Familiarity only dulls reaction time. Capital Economics said G7 budget deficits widened by an average of more than 3% of GDP compared with 2019. France’s debt stands above 113% of GDP and is heading toward 118% by 2026. Germany, once the emblem of fiscal restraint, has removed its constitutional debt brake, with new borrowing for defense and other expenditures approaching €200 billion in 2026. The point is not that each case is identical. It is that the discipline once embedded in the system is loosening almost everywhere at once.
That should matter because fiscal restraint was never just a moral preference. It was a mechanical limit on how much promise could be stretched over a shrinking base of credibility. When that limit weakens, governments can still borrow, but only because someone else is still willing to absorb the paper. For now, that someone is the market. But markets are not moral institutions. They are probability machines. They ask not whether debt is virtuous, but whether repayment still sits inside the expected range of future outcomes.
A Market That Has Not Yet Flinched
This is why the absence of disorder can be misleading. Paul Donovan of UBS Global Wealth Management said, “This is not a US version of the UK’s Truss debacle. Markets are not disorderly and government policies are not destabilising.” That may be true in the narrow sense. The collapse is not here. But markets often move like glaciers, not avalanches. Pressure accumulates in silence. An unnamed fund manager put it differently: “I don’t see it as a Liz Truss moment. It’s more of a frog in a boiling pot.”
That image is useful because it captures the investor’s worst weakness: adaptation. A little more debt, a little more issuance, a little more tolerance from buyers, and the new level of stress becomes normal. Then the next increment arrives. The frog does not feel each degree as a separate warning. Humans do the same with sovereign finance. They confuse an absence of tantrum with durability, even though every balance sheet has a point at which the arithmetic stops negotiating.
The bond market has still provided some pushback. In late May 2024, the US 10-year Treasury yield rose to 4.63% following a weak 7-year note auction. In June 2024, French bond spreads over German bunds hit multi-year highs amid election concerns. Those are reminders, not revolutions. They show that investors will still charge more when supply grows or political noise rises. But price adjustments are not the same as discipline. Higher yields can become the system’s way of pretending it has solved the problem, when in fact it has only repriced the delay.
Why Borrowing Feels Easier Than It Is
There is a game-theory problem at the heart of sovereign debt. Each government sees the immediate benefit of borrowing now and the diffuse pain of adjusting later. Voters reward the visible gain and discount the hidden cost. Politicians know this, which is why fiscal pain so often gets deferred to the next administration, the next cycle, or the next market mood. That logic works only while markets remain willing to finance it at tolerable cost. Once financing becomes expensive enough, the state has fewer elegant exits than it imagined.
The irony is that debt becomes more seductive precisely when institutions convince themselves they are sophisticated enough to manage it. Central banks bought time. Now they are withdrawing as buyers. Reuters reported that the Bank of England, the ECB, and the Fed are all shrinking their balance sheets, removing a traditional buyer of government debt. That matters because a market with a retreating buyer of last resort is not the same market that tolerated high deficits under easier conditions. Supply has to go somewhere. If the old anchor is being lifted, the drift can become more visible.
The Real Test Is Still Ahead
HSBC estimates that the US would need a fiscal adjustment of more than 4% of GDP to stabilize its debt-to-GDP ratio. France requires about 3%, while the UK and Germany require about 2%. Those numbers are not predictions of what will happen. They are a measure of what would be needed to halt the slide. In other words, they describe the size of the hill governments would have to climb simply to stand still. That is the part markets often underprice: not the debt already accumulated, but the political difficulty of reversing it.
The near-term test remains blunt and old-fashioned. Debt ceiling and budget negotiations still matter, not because they are elegant, but because they reveal whether politics can even approximate arithmetic. The Treasury auction calendar remains a recurring stress test for how much sovereign supply the market can absorb. In a sense, each auction is a small referendum on collective patience. If demand weakens, the message is not subtle. The buyer base is telling governments that confidence is not infinite, only conveniently delayed.
History’s Lesson Is Not Comforting
History does not say that every heavily indebted state collapses. It says something more uncomfortable: prolonged debt expansion usually ends in one of three ways — inflation, repression, or adjustment. Sometimes the pain arrives through rates. Sometimes through growth. Sometimes through a slow erosion of real savings. Markets prefer to believe they can choose the path. They usually cannot. That is why sovereign prudence is less a virtue than a form of insurance, bought cheaply in calm years and regretted expensively in stormy ones.
The current moment resembles a ship whose hull has not yet flooded because the pumps are still running. That is not the same as being seaworthy. The United States can carry a $1.9 trillion deficit for a time. France can carry debt above 113% of GDP for a time. Germany can borrow nearly €200 billion more for defense and other expenditures in 2026 for a time. But time is not a strategy. It is only the medium through which fragility becomes expensive.
What Investors Misread
Investors often look for a single breaking point, a Truss-style panic, a failed auction, a sudden bond revolt. That is the wrong mental model. The more common danger is incremental erosion. Debt grows, central bank support fades, deficits normalize, and the market slowly adjusts its demands. The process is less theatrical than a crisis and more dangerous because it invites complacency. By the time everyone agrees the path is unsustainable, the cost of changing it has already become political, not just financial.
That is why the Peterson Institute’s warning matters, even if it sounds obvious: “The nation is on an unsustainable fiscal path.” Such language gets filed under alarmism until the compounding math catches up. But sovereign debt is patient. It can wait longer than electorates can. It rewards hesitation until hesitation becomes the trap. The market does not need to panic for the structure to weaken. It only needs to keep lending while politicians keep postponing the bill.
Prudence, then, has not disappeared because anyone disproved it. It has disappeared because the penalty for abandoning it has been delayed. That delay is the most dangerous kind of market signal.