Capital Wealth
FRI CLOSE · SEP 11   S&P 500 7,656.98 ▲0.86%  ·  DJIA 52,573.29 ▲0.98%  ·  NASDAQ 26,333.04 ▲0.96%  ·  10-YR 4.975%  ·  2-YR 4.572%  ·  WTI $99.99 ▼2.4%  ·  GOLD $4,390.00 ▲0.6%  ·  VIX 15.84 ▼11.2%
Exchange · AI

AI Solved a Math Problem That Stumped Mathematicians for Nearly a Century. Then Came the Warnings

A swarm of AI agents produced a solution to one of math’s Millennium Prize Problems in days. On the day it was published, people inside AI labs sounded alarms about where this is heading.

By Sean Anees Saifi · Capital Wealth · Published Tuesday, September 15, 2026 · Source: The Wall Street Journal, September 12–13, 2026 Weekend edition (Exchange)
Key Points
10,000
AI agents, at most, in the swarm
88 hrs
time the swarm spent on the problem
20%
experts’ odds, a year ago, of this by 2030
>10%
Anthropic researcher’s odds of extinction within a decade
A dark concrete corridor where a heavy steel door stands ajar, revealing a blue-lit server room inside.
A swarm of AI agents needed a few days and millions of dollars in computing to solve a problem that had vexed mathematicians for nearly a century.
In one line: AI’s math breakthrough is startling, and so are the warnings — but a technology’s promise and the price of stocks tied to it are separate questions.

In 2000, mathematician Alain Connes said math’s seven grand problems were “totally inaccessible to computers.” Now a swarm of as many as 10,000 AI agents has spent 88 hours on one of them, and OpenAI has published a solution. The Navier-Stokes problem had vexed mathematicians for nearly a century. The machines needed millions of dollars in computing and a few days. For those of us whose math peaked at splitting a dinner check, that’s a lot to take in.

Then came the warnings

It wasn’t even the day’s most ominous AI news. The same day, researcher Jacob Coxon resigned from Anthropic over safety fears. Coxon, who worked at both OpenAI and Anthropic, said neither is acting responsibly in the sprint toward self-improving superintelligence. People building AI, he said, believe it could kill us all.

Evan Hubinger, an Anthropic researcher whose job is making sure AI doesn’t kill us all, echoed him. On X, he put the odds of human extinction in the next decade above 10%. That is a sobering figure from the person whose job is to shrink it.

Mathematicians are split, too. Before the proof even appeared online, social media buzzed with suspicion that OpenAI’s model had drawn on unpublished human work, which the company denies. Connes now says he is very upbeat about AI’s progress in math. Terence Tao was one of two dozen Fields winners warning that the industry’s obsession with math problems could undermine the purpose of math itself. Timothy Gowers, another Fields medalist, wouldn’t say it’s all over — or that it isn’t.

The promise and the price

Here’s the line worth drawing at home. The Journal’s Ben Cohen writes that the labs are not racing through math because their business depends on it. Math is useful marketing, he argues — a way to advertise what their latest models can do. Even this breakthrough came with a bill: millions of dollars in computing.

A stock price is a different animal. It’s a bet on future profits, which depend on costs, competition and customers — not on a benchmark score. A technology can change the world while shares tied to it disappoint. Both can be true at once.

If AI headlines have you wondering how much of your money rides on them, that’s a fifteen-minute question. Bring a statement — umbrellas do their best work when they are already by the door.

What It Means For Your Portfolio

Hold — separate the promise from the price

AI’s leap in math is startling, but a breakthrough isn’t a business plan — nothing here is a reason to chase AI-linked stocks or rewrite a long-term mix.

General planning principles, not advice for anyone in particular: judge a technology by what it can do. Judge a stock by what the business earns and what you’re paying. Big breakthroughs tend to invite big bets, so keep any single theme to a slice you could watch fall without abandoning the plan.

This column doesn’t move our portfolios. Large tech — Apple (AAPL), Nvidia (NVDA), Microsoft (MSFT), Meta Platforms (META) and Alphabet (GOOGL) — stays held, as does Micron Technology (MU), with tactical adds still off. No purchases followed Friday’s hot core print, and leveraged speculation stays off the table.

Book a 15-Minute Review → Back to Edition No. 169 →