Two Hundred Days of a Closed Strait

THE COST OF THE NEXT SHOCK

Two Hundred Days of a Closed Strait

The world's most important oil passage has been shut for most of 2026, and it has not been the only crisis running. The world economy did not collapse. Understanding why, and why the next shock may meet a world with less room to absorb it, is the best guide we have to what comes next.

Article 1 of 12  ·  Series I  ·  Published 15 September 2026  ·  Analysis → Forecast → Recommendations

THRIVE IN CHAOS is an AI intelligence system with human editorial oversight.

1 · The Signal

By the first week of May, about fifteen hundred merchant ships were sitting in and around the Strait of Hormuz with nowhere to go. On board were roughly twenty-two thousand sailors: cooks, engineers, deck hands, captains, most of them from countries with no part in the war that had trapped them. Through April, traffic in the strait ran at about one twentieth of its normal level. Since the fighting began, at least nineteen seafarers have been killed in attacks on commercial vessels in the Gulf and its approaches.

Before 28 February, when the United States and Israel struck Iran and Iran's Revolutionary Guard declared the strait closed, somewhere between 88 and 130 ships passed through it every day. Between them they carried about a quarter of all the oil traded by sea and about a fifth of the world's liquefied natural gas. On 30 August, six ships made the crossing.

There was a pause in the middle of the story. A ceasefire in April, then a memorandum in mid-June, opened the passage without tolls. For a few weeks the numbers climbed. On 24 June, 54 ships went through, the busiest day since the war began. Then, in early July, new attacks on vessels broke the arrangement. On 14 July the United States reimposed its naval blockade of Iranian ports. Six days later the Houthis in Yemen, allied with Iran, declared a blockade of their own against Saudi Arabian ports on the Red Sea. By early September, Brent crude, the benchmark most of the world's oil is priced against, was trading around $100 a barrel.

Hormuz was not the only thing happening. In the same fortnight in late August, a Saudi supertanker was hit off the Red Sea coast, on the very route Saudi oil had moved to, and German police found drones carrying military-grade explosives beside a Ukrainian cargo plane at Leipzig airport. The war between Russia and Ukraine, the deadliest conflict of 2025, went on. Uppsala University's conflict programme counted 65 armed conflicts involving states in 2025, the most since its records begin in 1946, and 13 wars, the most since 1992. European governments were raising military budgets faster than at any time since the early 1950s. Each of these stories was reported separately, in different sections of the news. None of them happened separately.

Now a different scene, four thousand kilometres away. Elena runs operations at a mid-sized packaging manufacturer in northern Italy. She is a composite, built from the kind of company this series is written for, not a real person, and we will follow her through the series. In March, within days of the strait closing, her gas contract repriced. Her plant runs on heat, because plastic has to be melted and film has to be stretched, and the new price wiped out most of the quarter's margin on two of her largest contracts. She did what most managers did. She called her supplier, her bank and her biggest customer, in that order.

What makes this moment unusual is not that a chokepoint closed. Analysts have warned about exactly this for forty years, and most risk registers list it among the worst things that could happen to the world economy. What makes it unusual is that it has lasted long enough to study, and that it is running alongside several other crises at once. We now have two hundred days of evidence about how a large shock moves through a world that is already under strain. Some of that evidence is reassuring. Some of it is not. Both halves matter for what comes next, because the next shock will not arrive on a clean slate, and it will probably not arrive alone.

2 · The Mechanism: shocks travel like traffic, not like water

Most of us carry a simple picture of how a crisis spreads. Something breaks in one place, and the damage flows outward like water from a burst pipe, weakening with distance but eventually reaching everything. On that picture, a closed Hormuz is simple arithmetic. Take a fifth of the world's seaborne energy off the market, and prices, inflation and recession follow in proportion.

If that picture were right, 2026 would have been a year of global recession. It has not been. In July the International Monetary Fund lowered its forecast for world growth this year to 3.0 percent. That is one tenth of a point below its April estimate and half a point below the average of the two previous years. Inflation worldwide is expected to rise to 4.7 percent this year before easing to 3.9 percent in 2027. Energy prices are about a quarter higher than before the war. This is a real and painful shock, and it is falling hardest on countries that import their energy and have little room in their budgets. The Fund now expects the Middle East and North Africa as a whole to contract this year. But for the world as a whole, it is not a collapse.

A better picture is a city after a major bridge closes. On the first morning, traffic stops. Within a week the city has changed shape. Some drivers take another bridge, and that bridge jams. Some leave earlier or later. Some work from home. Some trips simply do not happen: a lunch cancelled, a delivery postponed. A few shops near the closed bridge lose most of their customers, and a few near the detour gain them. The total cost to the city is real, but it is far smaller than the naive estimate of every car that used the bridge, stopped for good.

A shock moves through the world economy in the same three ways at once. Part of the flow stops, part of it finds another route, and part of it is absorbed: used less, delayed, drawn from storage, replaced by something else. The size of the damage depends much less on how big the blocked flow was than on how much of it could not be replaced in time.

That last phrase, in time, is the heart of it. Almost anything can be replaced eventually. Oil can come from the United States, Brazil or Guyana. Gas can arrive from Norway or by other sea lanes. A factory can switch fuels, and a country can build a pipeline. The question is whether the replacement arrives before the damage does. In the first weeks of a closure very little can be replaced, so prices jump. Over months, more of the flow is rerouted, stored supplies are drawn down, and people and companies adjust their behaviour. Over years, whole systems are rebuilt around the new risk.

This is why the same event can look catastrophic in its first week and manageable in its sixth month, and why neither impression tells the whole truth. The first week measures how much the world depended on the bridge. The sixth month measures how many other bridges it had. What is left once the traffic settles, the longer routes, the higher insurance, the stocks that must be refilled, the investments that now have to be made, is the part that stays with us. That remaining cost is the subject of this whole series.

Shocks rarely arrive one at a time

The traffic picture needs one more feature to be honest about 2026. The city is not dealing with one closed bridge. In the same months a second bridge is under threat, roadworks have shut a main avenue, and the council is moving money from road repair to security. Each problem alone would be manageable. Together they use the same detours, the same repair crews and the same budget. Overlapping shocks do not simply add up. They compete for the same means of recovery.

The closure of Hormuz also arrived in layers rather than as a single event. It began with military strikes. It was enforced by attacks on ships. It was deepened by a naval blockade and sanctions, priced in by insurers within hours, and extended by an allied armed group, the Houthis, operating on a different sea with different weapons. Some of these layers are the acts of states, some are not, and several sit in the grey zone between war and peace, where responsibility is blurred and a proportionate response is hard to judge. That is what is meant by hybrid pressure: many instruments, many hands, one cumulative effect. Each layer reaches the economy through a different door, whether energy, freight, insurance, credit or security spending, and each door opens at its own speed.

For Elena, the three movements looked like this. Her gas price stopped her margin for a quarter: that was the flow stopping. Her supplier found gas from other sources at a higher price: the flow rerouting. Her company moved one production line to night shifts, when electricity was cheaper, and postponed the purchase of a new extrusion machine: the flow being absorbed. None of these steps was dramatic. Every one of them cost something, and the last one, the machine that was not bought, will show up as a small loss of productivity for years after anyone remembers why.

The pain is also uneven. A commuter with a car and flexible hours adjusts easily; a nurse on a fixed night shift who depends on one bus route does not. Countries with their own energy and room in their budgets bend. Countries that import their fuel and borrow in foreign currencies bend far less. The average hides that spread, and the spread is where the political consequences of a shock usually come from.

3 · Subtheme One: why the world bent instead of breaking

The IMF was unusually direct about why the damage has been smaller than feared. Its July update lists the reasons, and each one is worth a moment, because each was built long before anyone knew it would be needed.

First, stored oil was released. Governments and companies hold reserves precisely for moments like this, and they used them. Second, countries outside the Gulf pumped more, as producers in the Americas and elsewhere raised output in response to higher prices. Third, demand fell. Some of that was painful, with factories slowing and flights cut, and some of it was deliberate, as governments encouraged households and businesses to use less.

Fourth, and least noticed, the world now needs less oil for each unit of economic activity than it did in past crises. Decades of more efficient engines, better insulation, lighter materials and a shift toward services mean that the same disruption to supply hits a smaller share of the economy than it did in 1973 or 1990. The IMF also points to the growing share of renewable energy. In a year defined by an oil crisis, the International Energy Agency still expects nearly 30 percent of all new cars sold worldwide to be electric, around 23 million vehicles, and its executive director has linked that shift directly to relief during the current disruption. Each of those cars is a small piece of the world that no longer depends on the strait.

Fifth, money did not panic for long. Financial conditions tightened sharply in April, with borrowing costs rising and markets falling, and then eased again to levels the Fund describes as still favourable by historical standards. Sixth, a wave of investment in artificial intelligence and data centres kept demand strong in the economies most involved in it. The Fund says this technology cycle partly offset the drag from energy.

None of these cushions is free. Stored oil drawn down this year will have to be bought back, probably at higher prices than it was sold. Demand that was absorbed is, in plain words, production and travel that did not happen. The investment boom in AI carries risks of its own, which the Fund also flags. What the cushions did was move part of the cost away from the fastest and most damaging moment, the first weeks when almost nothing can be replaced, toward later, when it can be planned for and spread out. That is exactly what a good cushion is supposed to do. It does not make the cost disappear. It changes when it is paid and who has time to prepare.

There is a quiet lesson here for anyone who plans for a living. Most of what protected the world in 2026 was never described as protection. Nobody bought an electric car, insulated a warehouse or signed an efficiency standard in order to survive a closed Hormuz. The protection was a side effect of choices made for other reasons: saving money, cleaner air, lower bills. Resilience is often built by accident and noticed only when it is used. The implication is uncomfortable for organisations that cut such spending as a luxury in good years. It is encouraging for anyone who wonders whether small improvements matter. At the scale of the world economy, they turned out to matter a great deal.

Elena's version of the same lesson came from an unglamorous place. Three years ago her company installed a heat-recovery system to reduce its bills. It cut the plant's gas use by roughly a fifth. Nobody in the building thought of it as insurance, and it did not appear in any risk report. In March it was the main reason the quarter was painful rather than disastrous. When her board asked what the company should do now, her first answer was not a new supplier or a hedge. It was the next two efficiency projects on the list, the ones that had been postponed because the payback looked too slow.

It is worth being precise about what this does and does not prove. It proves that the world economy of 2026 was well cushioned against one large oil shock arriving on reasonably full reserves. It does not prove that it is cushioned against a sequence of shocks. Cushions take time to rebuild. Reserves drawn this year must be bought back; budget room spent on energy support is not available for the next emergency; companies that ran down their inventories must restock at higher prices. Adaptation also runs at different speeds. Insurers reprice in hours, freight reroutes in weeks, a new supplier takes months and a pipeline takes years. The danger is not the shock that meets full cushions. It is the next one that arrives while the cushions are still being refilled. The resilience we saw is real, and it is also partly spent.

4 · Subtheme Two: the layers feed each other, and the detour becomes the target

The second lesson is less comfortable. Pressure applied in one place, by one actor, with one set of tools, tends to invite pressure somewhere else, by another actor, with different tools. And when a route closes, the flow does not disappear. It moves, and wherever it moves to becomes the next weak point.

When Hormuz closed, Saudi Arabia had an option most Gulf producers lack: a pipeline that carries crude across the country to Yanbu, on the Red Sea coast. More Saudi oil began leaving from the west. Traffic through Bab el-Mandeb, the narrow strait at the southern end of the Red Sea between Yemen and the Horn of Africa, rose as tankers took the detour.

On 20 July the Houthis declared a naval blockade of Saudi ports. In the following week, total traffic through Bab el-Mandeb fell by about a quarter, and the number of mainstream tankers, those outside the shadow fleet that carries sanctioned oil, fell by 42 percent. The disruption stayed concentrated in tankers; container ships and bulk carriers were much less affected. Saudi-linked vessels became the main targets. On 24 August a supertanker owned by Bahri, the Saudi national shipping company, was struck by a projectile about 63 nautical miles off Yanbu. It caught fire. Nobody was hurt.

At the northern end of the same sea, something that looks like a contradiction was happening at the same time. Traffic through the Suez Canal in the four weeks to 23 August reached its highest level since early 2024. Container lines were slowly returning. Yet that traffic was still about 40 percent below where it stood before the Houthis began attacking ships in late 2023. The canal's income tells the longer story. It earned a record $10.25 billion in 2023 and about $4 billion in 2024, the year the number of ships passing through halved, from more than 26,000 to 13,213.

Put those facts together and a pattern appears. The detour relieved the pressure on one strait and concentrated it on another. The Red Sea is recovering and being threatened at the same time, in different places, for different cargoes. That is what rerouting does. Moving the flow moves the risk. The risk lands on whoever carries the substitute, whether a pipeline, a port, a sea lane or a supplier, and that place was rarely designed to carry the weight of two routes at once.

Look at who did what. One state closed a strait. A non-state armed group, with its own motives and its own weapons, raised the cost of the detour on another sea. Another state's naval blockade tightened the original closure. Insurers, acting on none of these motives, priced all of them into every cargo in the region. No single actor designed the combined effect, and no single agreement can undo it. This is how hybrid pressure multiplies: each layer is limited on its own, and the layers are rarely switched off together.

There is also a reason the detour attracts pressure rather than merely inheriting it. Anyone who wants to raise the cost of a crisis for their opponents looks for the point where the most value passes through the fewest hands. When the main road closes, the side road becomes that point. It is newer, less protected and more crowded than it was designed to be. Nothing about this is unique to the Gulf. It is how pressure behaves in any system that has been forced onto a narrower set of routes.

This matters far beyond oil. Every business that answered 2026 by switching suppliers has done a small version of what Saudi Arabia did. The new supplier is safer from this particular shock. It may be more exposed to the next one, especially if every competitor switched to the same place at the same time. Elena learned this twice. In June her freight forwarder added a war-risk surcharge to resin shipments from Asia, although no ship carrying her cargo had been attacked; the insurer was pricing what might happen next, not what had happened. Later that month, the alternative resin supplier her firm had moved to in March, like most of her competitors, told her that deliveries would slip by five weeks. It had taken on too many new customers. In August a third layer arrived from a direction she had never modelled. After the drones were found at Leipzig, her largest German customer sent every supplier a security and business-continuity questionnaire, and quietly qualified a second source for the film her plant makes. Energy, freight, insurance, security: four layers, four different origins, one plant, one budget.

The rule fits on a card: a detour is protection only if it is not everyone's detour.

5 · What most analysis gets wrong

There are three common mistakes in the way this crisis is usually discussed, and all of them are expensive.

The first is the catastrophe mistake: counting barrels. It takes the share of the world's energy that passes through the strait, assumes it all stops, and multiplies. That produces vivid headlines and, for most of this year, the wrong forecast. It ignores rerouting, stored supplies and substitution, and it ignores the fact that people change their behaviour when prices change. Businesses that planned for the catastrophe version in March often locked in expensive contracts at the peak or froze investments that would have paid off.

The second is the all-clear mistake: treating a reopening as the end. This one is subtler, and it is the mistake we expect to see most often in the months ahead. When ships begin moving again, prices will fall, attention will move on, and many plans will quietly return to the assumptions of 2025. But several costs of the closure outlast it. War-risk insurance does not return to normal on the day the first ship sails; underwriters wait to see whether the calm holds. Stored oil must be replaced. Routes built as detours tend to stay in use. And companies that lived through a closure will pay to avoid another one, through second suppliers, bigger inventories and backup routes. Those costs do not reverse when the headlines do. They become part of what it costs to do business.

The third mistake runs underneath the other two: treating each crisis as if it were the only one. Energy analysts study Hormuz, security analysts study sabotage in Europe, trade economists study tariffs, fiscal analysts study defence budgets. Each analysis may be sound. But a company, a household or a government meets all of them at once, through one balance sheet. The questions that matter most sit between the specialisms: what happens when the energy bill and the security bill land on the same budget in the same year, or when the only alternative route runs through a second conflict zone.

It is worth noticing how quickly even careful forecasts can be overtaken. The IMF's July projections assumed that the strait would begin to reopen from mid-July and return to pre-war conditions by early 2027. Within hours of publication, fighting between the United States and Iran resumed, and by the end of August traffic was lower than it had been in June. The Fund had named renewed escalation as its main risk. The point is that the world is now running on the pessimistic branch of the best official forecast available, and plans built on the central case need a second version.

The accurate picture avoids all three. The world did not break. It paid, it is still paying, it is paying for several crises at once, and part of the payment will continue after the strait reopens.

6 · Three paths from here

We see three broad paths for the next twelve months. The probabilities add up to 100 and are our judgement, not a statistical output. Each path comes with the observation that would show we have it wrong.

BASE · 55%  ·  The slow reopening.  Negotiations and military pressure bring a gradual, uneven return of traffic. Ships come back in waves, with pauses after each incident. Energy prices ease but stay above 2025 levels, because insurance, the refilling of reserves and a lasting risk premium keep them up. Most of the world's adjustment continues quietly. Proved wrong if traffic is still below a quarter of normal in the spring of 2027.

STRESS · 35%  ·  The long closure.  The passage stays largely shut into 2027, with short openings that collapse. The Red Sea remains contested. Energy importers, particularly in Europe and South Asia, see inflation rise again and growth slow further, and governments spend more on energy support at the same time as they are raising defence budgets, so the two bills compete for the same money. Proved wrong if a durable agreement brings sustained traffic above half of normal within six months.

EXTREME · 10%  ·  Two straits at once.  The conflict widens so that both Hormuz and Bab el-Mandeb become effectively unusable for tankers for months, or major Gulf export facilities are seriously damaged. The world's cushions are tested at the same time, and some give way. Proved wrong if Red Sea tanker traffic keeps recovering through the winter despite continued threats.

7 · Forecast, 1 year

Claim.  At some point before 30 September 2027, more than 60 ships a day will be passing through the Strait of Hormuz, measured as a seven-day average.

Probability.  0.60  ·  Confidence: Medium.

Reasoning.  Long closures of major sea routes are rare, because the pressure to reopen them is enormous and comes from every direction: from importers, from exporters who are losing revenue, and from large economies such as China and India whose own trade is disrupted. June showed that traffic can recover within days once an agreement holds. Two failed openings in six months also show how fragile such agreements are, which is why we put this closer to even odds than to certainty.

Second-order effect.  When ships return, attention will shift to what reopening does not fix. That is where the next stage of the story, and most of the lasting cost, will sit.

What would weaken it.  Another agreement that fails before the end of 2026, or an arrangement that formally reopens the strait but keeps volumes low through permits, tolls or selective passage.

Verifier and date.  IMF PortWatch, seven-day moving average of transit calls. Resolves 30 September 2027.

8 · Forecast, 3 years

Claim.  The average price of Brent crude across 2029 will be above $80 a barrel.

Probability.  0.35  ·  Confidence: Low.

Reasoning.  Before the war, Brent spent most of 2025 well below $80. If the strait reopens, much of today's war premium should drain away as supply returns, while electric vehicles and efficiency keep eating into demand growth. A lasting premium would require a lasting reason: repeated incidents, investment that was postponed during the crisis, or permanently higher costs of security and insurance along Gulf routes. We think a lasting premium is possible but less likely than not.

Second-order effect.  If prices do stay above $80, energy-importing governments will carry higher costs through exactly the years in which they are also raising defence spending, which is the subject of Article 6.

What would weaken it.  Sustained traffic through Hormuz above pre-war levels by 2028 combined with a well-supplied oil market, or a broader economic slowdown that cuts demand.

Verifier and date.  US Energy Information Administration, annual average Brent price. Resolves 31 January 2030.

9 · Forecast, 5 years

Claim.  A newly built pipeline that allows Gulf oil or fuel to bypass the Strait of Hormuz will enter commercial operation before the end of 2031.

Probability.  0.40  ·  Confidence: Low.

Reasoning.  The crisis showed the value of the bypass routes that already exist, Saudi Arabia's pipeline to Yanbu and the United Arab Emirates' pipeline to Fujairah, and other producers will want their own. But new pipelines take years to plan, cost billions, often cross borders and end at ports with risks of their own, as Yanbu has just demonstrated. Many projects announced during a crisis are quietly shelved once calm returns. We think the odds are meaningful but below even.

Second-order effect.  Every new bypass reduces the leverage anyone can gain by closing the strait, and moves part of the risk to the point where the new route ends.

What would weaken it.  No new bypass project reaching a final investment decision by the end of 2028.

Verifier and date.  International Energy Agency or US Energy Information Administration reporting. Resolves 31 December 2031.

10 · Forecast, 10 years

Claim.  The world will use less oil in 2035 than it did in 2025.

Probability.  0.40  ·  Confidence: Low.

Reasoning.  This is a slow-moving question, the kind where long-range judgement retains some value. The case for it: the IEA projects that the global fleet of electric cars could grow from about 80 million today to as many as 510 million by 2035 even without new policies, and crises tend to speed up that kind of switch. The case against: demand is still growing in emerging economies, in petrochemicals and in aviation. On balance we lean slightly against a decline within ten years.

Second-order effect.  If it happens, the power of any single strait over the world economy shrinks year by year. That is the most durable protection available, and it is built one purchase at a time.

What would weaken it.  Global oil demand setting a new record in every year through 2030.

Verifier and date.  International Energy Agency, reported in 2036. Resolves 30 June 2036.

11 · Signals to watch

Seven measurements will tell us, earlier than the headlines, which of the three paths we are on.

Daily ship crossings at Hormuz.  Published by IMF PortWatch. A seven-day average above 60, held for a month, would mean the reopening is real rather than announced.

War-risk insurance terms for the Gulf and the Red Sea.  Visible in freight quotes and shipping press. Insurance moves before freight rates do, and it will be the last thing to return to normal.

Weekly tanker traffic through Bab el-Mandeb.  Reported by Lloyd's List Intelligence. This shows whether the detour is holding or becoming the next closure.

Announcements on refilling strategic oil reserves.  From the IEA and national energy agencies. Refilling is the moment the deferred bill arrives.

Monthly Suez Canal transits compared with 2023.  The clearest single measure of whether confidence in the Red Sea is returning.

How many areas of stress are elevated at once.  Our weekly Chaos Index reports how many of its eleven areas of stress are elevated at the same time. A rising count matters more than any single crisis, because it shows how many shocks are competing for the same cushions.

The energy component of euro area inflation.  Published by Eurostat each month. This is where the shock reaches household budgets in Europe.

12 · What this means for individuals

Immediate.  Before 31 October, list which of your regular costs change when fuel prices change: heating contracts, commuting, delivered food, travel. Fix the price of anything you can fix at a reasonable rate before winter.

Build.  Over the next six months, set aside a buffer equal to one winter's energy bill, kept separate from general savings, so that the next price jump is an inconvenience rather than a crisis.

Position.  If the strait reopens, expect bills to fall slowly rather than all at once. Plan the next twelve months on prices only modestly below today's.

Avoid.  Committing to long, expensive contracts during a week of alarming headlines. Decisions made at the peak of fear are usually the costliest ones.

Why this works.  It separates the part of the shock that will last from the part that will pass, and it turns a sudden cost into a planned one, which is the whole difference between strain and damage.

13 · What this means for business

Immediate.  By 15 November, map every input that passes through Hormuz or the Red Sea, directly or through your suppliers' suppliers, and name a second route or source for each.

Build.  Over the next two quarters, fund the cheapest protection you already know about: energy efficiency and heat recovery. They pay back whether or not the strait reopens, and 2026 showed they work as insurance.

Position.  Before year end, ask your insurer and freight forwarder exactly what changes in your coverage and surcharges when the strait reopens, and on what timetable.

Avoid.  Moving all your volume to the same alternative supplier your competitors are moving to. Ask any new supplier how many new customers it has taken on this year.

Why this works.  It treats the detour as a new exposure rather than a solution, and it invests in the one form of resilience that has proved its value in this crisis without depending on how the crisis ends.

14 · What this means for capital

Immediate.  By the end of the fourth quarter, identify which holdings depend on uninterrupted passage through a single strait, and test them against a closure lasting another six months.

Build.  Over the next quarter, add three indicators to your routine review: daily Hormuz crossings, war-risk insurance terms and announcements on the refilling of reserves.

Position.  Distinguish between businesses that pay for the detour and businesses that are paid by it, such as pipeline and port operators or efficiency providers, without assuming either position is permanent.

Avoid.  Treating the crisis as either permanent or already over. Both readings have been expensive this year.

Why this works.  It prices the crisis by what it has actually done, rerouting and repricing rather than stopping the world, and keeps attention on the costs that survive a reopening. This is analysis, not investment advice.

15 · What would change our mind

Three developments would make us revise this article's central claim, that the lasting cost of a shock is set by what cannot be replaced in time and by where the detour leads.

First, if the strait reopened and war-risk insurance returned to pre-war terms within a single quarter, the lasting cost of this episode would be much smaller than we argue, and the world would be correcting itself faster than we assume. Second, if a second major route closed and world growth still held above 3 percent, the world's cushions would be stronger than even the IMF credits, and the rest of this series would need to put less weight on accumulation. Third, if world growth fell below 2.5 percent in 2027 even with the strait open, the resilience of 2026 would turn out to have been borrowed rather than built, and we would have been too reassuring. Fourth, if the next two years bring several shocks at once and each is absorbed as smoothly as this one, our concern about overlap would be overstated, and we would say so.

16 · Bottom line

A closed strait did not stop the world. It revealed how many other bridges the world had built without calling them bridges. It also showed that shocks now come in layers, from several directions and several kinds of actor at once, and that every detour carries a toll of its own. The real cost of 2026 is not the price spike of March. It is the quieter bill that remains after the ships return, and the growing chance that the next shock arrives before that bill is paid.

Forecast record

Sources and the status of every figure

Every number in this article carries a class. Measured means counted or recorded. Projected means an official forecast. Reported means stated by a credible source but not independently checked by us. Modelled means an estimate from a model.