Predictions of financial apocalypse are cheap. At almost any moment during the past half-century, somebody somewhere has been announcing that shares are about to collapse, banks are about to fail, the dollar is about to die, gold is about to explode and civilisation will shortly discover that compound interest was a terrible idea. Most of these predictions disappear quietly. The forecaster simply changes the date. The crash that was coming in March will arrive in September; September becomes next year, and eventually a recession occurs, as recessions always do, allowing the prophet to announce that he was right all along.
It is the financial equivalent of the boy who cried wolf, but the difficulty with that story is that everybody remembers the boy and forgets the wolf. Eventually the wolf actually came. That is worth remembering when listening to British political economist Ann Pettifor, who is again issuing extraordinarily gloomy warnings about the international financial system.
Pettifor is not merely another YouTube prophet who discovered sovereign debt last Tuesday. She was warning about the structure that produced the Global Financial Crisis years before Lehman Brothers collapsed. In 2003, Pettifor and colleagues argued that the next great debt crisis could occur not in Argentina or another developing economy but in the United States and other rich Western economies. In 2006 she published a book whose title did not leave much room for ambiguity: The Coming First World Debt Crisis.
Her argument focused upon the enormous expansion of private and public debt relative to incomes and productive output, particularly in the Anglo-American economies. Easy credit inflated asset prices, rising asset prices encouraged additional borrowing, financial institutions became increasingly leveraged and the whole arrangement depended upon confidence that debts could continually be refinanced. Two years later, much of it came apart. That does not make Pettifor infallible, but it does mean that when she says the financial system is again in serious trouble, dismissing her as just another doom merchant would be unwise.
Her present argument is not simply that stocks are too high or that American government debt has reached an impressively frightening number. It concerns the architecture connecting sovereign debt, bond markets, private credit, hedge funds, central banks, currencies and the latest extraordinary borrowing boom associated with artificial intelligence. The financial landscape is certainly remarkable. The United States has passed $40 trillion in federal debt, while across OECD countries governments collectively paid around $2 trillion merely servicing their debts in 2025. Interest rates are far above the near-zero levels to which governments, businesses and investors became accustomed after the Global Financial Crisis.
Governments are therefore rediscovering an elementary truth that was temporarily concealed by cheap money: debt is inexpensive only until it isn't. A government borrowing at one per cent inhabits a different fiscal universe from the same government refinancing its obligations at four or five per cent. The principal does not need to increase dramatically for the pain to multiply.
This creates the first element of Pettifor's case. The world accumulated enormous quantities of debt during an era of extraordinarily cheap credit, and much of that debt must now be refinanced in a world in which money costs substantially more. The second problem is that government borrowing is not occurring in isolation. Artificial intelligence has produced one of the largest capital-investment booms in modern history, with data centres requiring extraordinary amounts of computing equipment, electricity, cooling systems, transmission infrastructure and land.
The great technology corporations can finance much of this expenditure from enormous cash flows, but increasingly the AI infrastructure boom is also generating substantial corporate borrowing. Governments and corporations are consequently arriving at the bond market together with enormous appetites. There is only so much capital available at any given price, and when borrowers demand more of it, lenders can demand better returns. Bond yields rise, government interest bills rise, mortgage rates and corporate borrowing costs are pulled upward, and weak companies that survived happily when money was almost free suddenly discover that refinancing at current rates is considerably less pleasant.
This is how financial pressure migrates, and the crucial point about systemic crises is that the thing that finally breaks need not appear important enough to bring down the system. Few people in 2006 would have believed that mortgages issued to questionable American borrowers could threaten banks around the world. The mortgages themselves were merely the first domino. They had been packaged into securities, securities had been used as collateral, institutions had leveraged themselves against them, derivatives had been constructed around them and financial organisations had become dependent upon one another's continued solvency. The mortgage borrower in Nevada did not bring down Lehman Brothers by himself; he tugged one thread in an extraordinarily complicated financial jumper.
Pettifor's warning is essentially that we have knitted another one. The details are different this time, which is important. Anyone expecting a precise rerun of 2008 is probably looking in the wrong direction. Banks are generally better capitalised than they were before the GFC, mortgage structures differ and regulators have spent nearly two decades attempting to prevent the last disaster from happening again. Unfortunately, financial crises have an irritating habit of being original, and the vulnerabilities have migrated.
One interesting example is the US Treasury market itself. Foreign central banks were once enormously important buyers of American government debt. China accumulated vast holdings, and those institutions tended to be relatively patient owners. Today hedge funds and other private financial actors play a much larger role at the margin. Hedge funds hold enormous quantities of Treasuries and can operate with substantial leverage through repo markets, creating a different kind of vulnerability. A central bank holding American bonds as foreign-exchange reserves does not necessarily dump them because markets have an unpleasant Tuesday; a leveraged hedge fund facing margin calls may have considerably less freedom.
The supposedly safest financial asset in the world can therefore become entangled with some of the financial system's most highly leveraged players. We have already seen glimpses of what that can mean. In March 2020, the normally extraordinarily liquid US Treasury market itself suffered severe dysfunction before the Federal Reserve intervened on a massive scale. That episode should have permanently destroyed the comforting assumption that government bonds are somehow located outside the financial system's danger zone.
Then there is Japan. For decades Japan provided the world with extraordinarily cheap money, with very low Japanese interest rates encouraging investors to borrow yen and invest elsewhere through the famous carry trade. As Japanese interest rates and bond yields rise, some of those trades become less attractive. Capital can move home and leveraged positions can unwind. Again, nothing here guarantees catastrophe, and that distinction is essential.
Financial systems can absorb enormous strains. Markets adjust, investors take losses, governments alter fiscal policy, central banks provide liquidity, companies refinance and new buyers appear when yields become sufficiently attractive. What looks unsustainable at one price becomes entirely sustainable at another. There is also an important counterargument to the current apocalypse narrative. The US Treasury market, despite substantially higher yields and enormous government borrowing, continues to function. The American economy remains large and productive, the dollar remains the world's dominant reserve currency and investors continue buying American government securities. A five per cent Treasury yield is not evidence that the United States has become Zimbabwe; it may simply mean investors demand five per cent.
That is why Pettifor's warning should be treated as a risk analysis rather than a prophecy. There is, however, something about financial crises that makes complacency especially dangerous, because their probability and their consequences are radically different questions. Suppose somebody predicts a financial crash every year for twenty years. He is wrong nineteen times and we laugh at him, but then the twentieth prediction is correct and the banking system collapses. His forecasting record is still terrible, yet your bank account may nevertheless be gone.
This is the problem with the boy who cried wolf as a philosophy of risk. The moral is usually taken to be that repeated false alarms should make us ignore alarmists, but that isn't actually what happens in the story. The wolf eventually eats the sheep. The sensible shepherd therefore faces a difficult task: he must discount the boy's unreliable predictions without discounting the existence of wolves.
Financial history presents exactly this problem. There have always been Cassandras and most predicted disasters fail to arrive on schedule, yet 1929 happened, Japan's enormous asset bubble burst, the Asian Financial Crisis happened, the dot-com bubble collapsed and the Global Financial Crisis happened. Governments closed economies during COVID and central banks subsequently confronted inflation that many policymakers had failed to anticipate. "People are always predicting disaster" is therefore not an argument that disaster cannot occur. Sometimes the doomsayers get their day.
Pettifor's record makes this particularly interesting because her success before 2008 was not simply a lucky prediction that the stock market would eventually fall. Her earlier analysis identified excessive indebtedness, asset inflation, deregulated finance and the vulnerability of an increasingly interconnected credit system. Those mechanisms mattered enormously when the crisis arrived. Her present warning should therefore be judged in the same way: not by her reputation, but by whether the mechanisms she identifies actually exist.
Many clearly do. Government debts are enormous, interest costs are rising, bond yields have increased sharply from their post-GFC lows, leveraged institutions play important roles in government debt markets, the AI investment boom is generating extraordinary capital requirements, Japan's monetary environment is changing and governments have less fiscal room than they possessed before previous crises. What we do not know is whether these stresses will combine into a systemic event.
Perhaps they won't. Higher interest rates may gradually discipline governments, AI investments may generate productivity improvements large enough to justify today's extraordinary expenditure, bond markets may absorb increased issuance, inflation may subside and central banks may successfully navigate between excessive tightening and renewed monetary expansion. If so, another financial prophet will have cried wolf.
But there is another possibility. Somewhere inside this enormously complicated global network may be a vulnerability that currently looks manageable. Perhaps it lies in private credit, leveraged Treasury trades, sovereign debt, an AI-related credit bust, commercial property or something that hardly anybody is discussing. Pressure accumulates until something breaks, and institutions discover that their counterparties are exposed to institutions exposed to institutions exposed to whatever broke.
Everyone then wants liquidity simultaneously. Assets that were considered safe are sold because they are the only things that can be sold, prices fall, margin calls arrive, leverage reverses direction and suddenly the financial system discovers that yesterday's abundant liquidity was largely confidence wearing a suit. Then central banks arrive with the fire engines.
That was one of the great lessons of 2008. The system could appear sophisticated, diversified and extraordinarily profitable right up until the moment everyone discovered that risks supposedly dispersed throughout the financial world were actually connected. Ann Pettifor saw enough of that structure beforehand to deserve a hearing now, although not unquestioning belief. There is an enormous difference between the two.
The correct response to someone shouting "wolf" is not to shoot every dog in the village, nor is it to put on headphones because previous warnings proved false. It is to walk to the edge of the field and see whether there are any wolves. Right now, there are enough shapes moving in the darkness to make that inspection worthwhile.