105,000. That is the number recorded by the World Uncertainty Index (WUI), created by Nicholas Bloom of Stanford and his colleagues. The method of measurement is surprisingly simple. It quantifies how many times the word "uncertain" appears in the reports that the Economist Intelligence Unit writes about 143 countries.
"The WUI is computed by counting the percent of word "uncertain" (or its variant) in the Economist Intelligence Unit country reports. The WUI is then rescaled by multiplying by 1,000,000. A higher number means higher uncertainty and vice versa. For example, an index of 200 corresponds to the word uncertainty accounting for 0.02 percent of all words, which, given the EIU reports are on average about 10,000 words long, means about 2 words per report."
— worlduncertaintyindex.com (Ahir, Bloom, Furceri)
The peak in 2020, when COVID brought the world to a standstill, was about 60,000. 9/11 was in the 30,000s. Now it is nearly twice the level during COVID. The chart's label is concise. "Trade War." Those two words have been attached as the name explaining a level of uncertainty humanity has never experienced before.
The way this machine works is simple. The WUI does not measure what is actually happening in the world. It measures how bewildered the people observing the world are. It is less like a seismograph and more like a camera reading the expression on the face of the person watching the seismograph. When observers write "I don't know" more often, the number rises. This is where the question divides. Is the world really shaking more, or have the eyes observing the shaking become more sensitive than they were in the past? Probably both. But if we skip over this distinction, we end up swallowing the fear the number gives us whole.
This does not mean that the landscape reflected in the mirror is unreal. The tariff policies of Trump's second term have raised the United States' weighted average tariff rate from 1.5% to 13.5%. That is the highest since 1946. They have created an additional annual burden of $1,300 per U.S. household, and the size of the tax increase relative to GDP is the largest since 1993. Section 232 tariffs on automobiles, semiconductors, and pharmaceuticals have been layered on top of IEEPA tariffs targeting China, Canada, Mexico, and the EU. At this point, no calculator is needed to figure out how many times the word "uncertain" will appear in the reports.
Past crises each had a proper name. Al-Qaeda in 2001, Lehman Brothers in 2008, and COVID-19 in 2020. If you knew the enemy's name, you could make a strategy. Now the next thing arrives before we can even give it a name. When the United States raises tariffs, China tightens its grip on rare earths; when rare earths are restricted, the semiconductor supply chain is shaken; when semiconductors are shaken, the cost of training AI rises; when AI costs rise, investment in automation is delayed; when automation is delayed, pressure on labor costs grows; and when labor costs rise, companies cut jobs. When the U.S. Bureau of Labor Statistics released data on slowing employment, Trump dismissed the director, saying the data had been manipulated. It is a scene in which the head of an institution measuring uncertainty is cut down by the source of the uncertainty.
AI is already writing legal documents, reading medical images, writing code, and handling customer service. No one can answer what jobs will remain five years from now. The war in Ukraine has not ended in its third year, and oil prices lurch every time a new front opens in the Middle East. Climate policy turns 180 degrees with every election cycle. The world's largest economy is a country that has withdrawn from the Paris Agreement, returned to it, and withdrawn again. Papers are being published arguing that quantum computing could neutralize today's cryptographic systems; people are discussing the possibility that national digital currencies could collide with the existing financial system; and countries with shrinking populations and countries with exploding populations are experiencing opposite economic problems at the same time on the same planet. None of these exists on its own. They are all each other's causes and effects. This is not a tangle of threads. It is a net. Pull on one strand and the whole thing moves.
What is interesting is the center of gravity of this net. Europe's WUI is already coming down from its peak. Only the United States is continuing to set new all-time highs. The name "World Uncertainty Index" is, in reality, closer to "the Uncertainty Index the United States Exports to the World." When the policy of the world's largest economy changes direction day by day, the authors of reports on 143 countries have to check Washington first even as they analyze their own economies. Uncertainty crosses borders like tariffs do. Unlike tariffs, though, it cannot be sent back.
At every moment of fear, investors open the same drawer. The drawer marked history. In the 12 months after the 2008 financial crisis, the S&P 500 rebounded sharply from its bottom. After the COVID crash, it rose 75%. It also rose 28% after the peak of the trade war in 2019. The pattern seems clear. When the uncertainty index peaks, fear has already been priced in, and all that remains is a rebound. There is a captivating symmetry to this story. It has the same structure as the old belief that the darkest night comes just before dawn.
The problem is that the nights of the past had only one sun. A single shock arrived, policy responded, uncertainty cleared, and the market rebounded. The chain of causation was clean. Now there are multiple shocks, policy itself is a source of shocks, and we cannot even predict which shock will be resolved first. "A rebound is coming" may not be wrong. But when faced with the question "when," the drawer of history is empty. No one has a sunset timetable for a planet with six suns.
Crypto was the first to shake on this planet. Bitcoin has fallen 32% in 2026, and the story of "digital gold" has once again been put to the test. It is the first to swell when liquidity is abundant and the first to shrink when liquidity freezes. The criticism is that it is an amplifier, not a shield. But the fact that it is an amplifier does not mean it is useless. Think of one of the doors created by this uncertainty: AI. In a world where agents trade with agents and agents hire agents, new monetary rails are needed for entities that cannot have human bank accounts. Rails that are programmable, permissionless, and know no borders. At least one of the doors created by uncertainty may be a door that cannot be passed through without crypto.
There is one thing this index has truly captured. People whose job it is to explain the world cannot find the words to explain what is in front of them. The word "uncertain" is "I don't know" dressed in a suit. When there is one variable, you can set up an equation. When there are six variables and each is a function of the other five, the form of an equation itself no longer holds. We are standing in a world beyond equations.
There has never been a time when the confession "I don't know" was this widespread and simultaneous. And strangely, the moment when everyone admits they do not know has become a more honest starting point than the periods when everyone pretended to know. You can only begin looking for a path once you admit that there is no map.
The task is clear. When there is no map, the first thing to do is build the ability to walk without one. In a world where equations do not hold, the muscle of making decisions without equations is more valuable than the effort to make the equations more sophisticated.
Specifically, it means this. A portfolio that bets everything on one scenario only worked on a planet with one sun. On a planet with six suns, you have to build a structure that survives no matter which sun rises first. Cash is not an admission that you lack conviction. It is the freedom to move in any direction. If you are afraid that AI will replace jobs, you need to stand on the side that uses AI as a tool. If you can see the agent economy opening, you need to stand on the rails that will become the infrastructure of that economy.
Uncertainty is an enemy to those who try to predict it, but another name for opportunity to those who adapt. The moment everyone says they do not know, the person who learns fastest reaches the farthest.
