A Godfather of AI Just Won a Nobel. He Has Been Warning the Machines Could Take Over the World.

The newly minted Nobel laureate Geoffrey Hinton has a message about the artificial-intelligence systems he helped create: get more serious about safety or they could endanger humanity.

“I think we’re at a kind of bifurcation point in history where, in the next few years, we need to figure out if there’s a way to deal with that threat,” Hinton said in an interview Tuesday with a Nobel Prize official that mixed pride in his life’s work with warnings about the growing danger it poses.

The 76-year-old Hinton resigned from Google last year in part so he could talk more about the possibility that AI systems could escape human control and influence elections or power dangerous robots. Along with other experienced AI researchers, he has called on such companies as OpenAI, Meta Platforms and Alphabet -owned Google to devote more resources to the safety of the advanced systems that they are competing against each other to develop as quickly as possible.

Hinton’s Nobel win has provided a new platform for his doomsday warnings at the same time it celebrates his critical role in advancing the technologies fueling them. Hinton has argued that advanced AI systems are capable of understanding their outputs, a controversial view in research circles.

“Hopefully, it will make me more credible when I say these things really do understand what they’re saying,” he said of the prize.

Hinton’s views have pitted him against factions of the AI community that believe dwelling on doomsday scenarios needlessly slows technological progress or distracts from more immediate harms, such as discrimination against minority groups .

“I think that he’s a smart guy, but I think a lot of people have way overhyped the risk of these things, and that’s really convinced a lot of the general public that this is what we should be focusing on, not the more immediate harms of AI,” said Melanie Mitchell, a professor at the Santa Fe Institute, during a panel last year.

Hinton visited Google’s Silicon Valley headquarters Tuesday for an informal celebration, and some of the company’s top AI executives congratulated him on social media.

On Wednesday, other prominent Googlers specialising in AI were also awarded a Nobel Prize. Demis Hassabis, chief executive of Google DeepMind, and John M. Jumper, director at the AI lab, were part of a group of three scientists who won the chemistry prize for their work on predicting the shape of proteins.

Thinking like people

Hinton is sharing the Nobel Prize in physics with John Hopfield of Princeton University for their work since the 1980s on neural networks that process information in ways inspired by the human brain. That work is the basis for many of the AI technologies in use today, from ChatGPT’s humanlike conversations to Google Photos’ ability to recognise who is in every picture you take.

“Their contributions to connect fundamental concepts in physics with concepts in biology, not just AI—these concepts are still with us today,” said Yoshua Bengio , an AI researcher at the University of Montreal.

In 2012, Hinton worked with two of his University of Toronto graduate students, Alex Krizhevsky and Ilya Sutskever, on a neural network called AlexNet programmed to recognise images in photos. Until that point, computer algorithms had often been unable to tell that a picture of a dog was really a dog and not a cat or a car.

AlexNet’s blowout victory at a 2012 contest for image-recognition technology was a pivotal moment in the development of the modern AI boom, as it proved the power of neural nets over other approaches.

That same year, Hinton started a company with Krizhevsky and Sutskever that turned out to be short-lived. Google acquired it in 2013 in an auction against competitors including Baidu and Microsoft, paying $44 million essentially to hire the three men, according to the book “Genius Makers.” Hinton began splitting time between the University of Toronto and Google, where he continued research on neural networks.

Hinton is widely revered as a mentor for the current generation of top AI researchers including Sutskever, who co-founded OpenAI before leaving this spring to start a company called Safe Superintelligence.

Hinton received the 2018 Turing Award, a computer-science prize, for his work on neural networks alongside Bengio and a fellow AI researcher, Yann LeCun . The three are often referred to as the modern “godfathers of AI.”

Warnings of disaster

By 2023, Hinton had become alarmed about the consequences of building more powerful artificial intelligence. He began talking about the possibility that AI systems could escape the control of their creators and cause catastrophic harm to humanity. In doing so, he aligned himself with a vocal movement of people concerned about the existential risks of the technology.

“We’re in a situation that most people can’t even conceive of, which is that these digital intelligences are going to be a lot smarter than us, and if they want to get stuff done, they’re going to want to take control,” Hinton said in an interview last year.

Hinton announced he was leaving Google in spring 2023, saying he wanted to be able to freely discuss the dangers of AI without worrying about consequences for the company. Google had acted “very responsibly,” he said in an X post.

In the subsequent months, Hinton has spent much of his time speaking to policymakers and tech executives, including Elon Musk , about AI risks.

Hinton cosigned a paper last year saying companies doing AI work should allocate at least one-third of their research and development resources to ensuring the safety and ethical use of their systems.

“One thing governments can do is force the big companies to spend a lot more of their resources on safety research, so that for example companies like OpenAI can’t just put safety research on the back burner,” Hinton said in the Nobel interview.

An OpenAI spokeswoman said the company is proud of its safety work.

With Bengio and other researchers, Hinton supported an artificial-intelligence safety bill passed by the California Legislature this summer that would have required developers of large AI systems to take a number of steps to ensure they can’t cause catastrophic damage. Gov. Gavin Newsom recently vetoed the bill , which was opposed by most big tech companies including Google.

Hinton’s increased activism has put him in opposition to other respected researchers who believe his warnings are fantastical because AI is far from having the capability to cause serious harm.

“Their complete lack of understanding of the physical world and lack of planning abilities put them way below cat-level intelligence, never mind human-level,” LeCun wrote in a response to Hinton on X last year.

Give gold bugs their due. The yellow metal has been a light in the investing darkness. At a recent $3,406 per troy ounce, it’s up 30% this year, to the envy of stock, bond, and Bitcoin holders. Cash-flow purists will call this a flash in the pan, but they should look again. Over the past 20 years, SPDR Gold Shares , an exchange-traded fund, has surged 630%—85 points more than SPDR S&P 500 , which tracks shares of the biggest U.S. companies.

That isn’t supposed to happen. If businesses couldn’t be expected to outperform an unthinking metal over decades, shareholders would demand that they cease operations and hoard bullion instead. So, what’s going on? If this were gasoline or Nike shoes or Nvidia chips, we would look to supply versus demand. With immutable gold, nearly every ounce that has ever been found is still around somewhere, so price action is mostly about demand. That has been ravenous and broad since 2022.

That year, the U.S. and dozens of allies placed sweeping sanctions on Russia, including its largest banks, and China went on a bullion spree. Its buying has since cooled, but other central banks have stepped in. Perhaps this is unsurprising, in light of a decades-long diversification by finance ministers away from the U.S. dollar, which is down to 57% of foreign reserves from over 70% in 2000. But the recent uptick in gold stockpiling looks to JPMorgan Chase , the world’s largest bullion dealer, like a debasement trade. Investors are nervous about President Donald Trump’s tariffs, his browbeating of the Federal Reserve Chairman over interest rates, and blowout U.S. deficits.

Surging Demand

It isn’t just bankers. Demand among individuals for gold bars and coins has been surging, with some dealers experiencing sporadic shortages. Gold ETFs were bucking the trend, but flows there have turned solidly positive since last summer, including recently in China. All told, there is now an estimated $4 trillion worth of gold held by central banks, and $5 trillion by private investors. Calculated against $260 trillion for all financial assets, including stocks, bonds, cash, and alternatives, that works out to a global gold portfolio allocation of 3.5%, a record.

What’s next? BofA Securities says that central banks have room for much more gold buying, and that China’s insurance companies are likely to dabble, too. RBC Capital Markets analyst Chris Louney says ETFs could drive demand growth from here, especially if angst reigns. “Gold is that asset of last resort…the part of the investing universe that investors really look for when they have a lot of questions elsewhere,” he says.

Russ Koesterich, a portfolio manager for BlackRock , a major player in ETFs including the iShares Gold Trust , says that gold has proven itself as a store of value, and deserves a 2% to 4% weighting for most investors. “I think it’s a tough call to say, ‘Would you chase it here?’ ” he says. “There have been some pullbacks. Those might represent a good opportunity, particularly for people who don’t have any exposure.”

Daniel Major, who covers materials stocks for UBS , points out that gold miners mostly haven’t wrapped themselves in glory in recent years with their dealmaking and asset management. As a result, a major index for the group is trading 30% below pre-Covid levels relative to earnings. UBS increased its 2026 gold price target by 23%, to $3,500 per troy ounce, before gold’s latest lurch higher. Many miners are producing at a cost of $1,200 to $2,000. Major has bumped up earnings estimates across his coverage. “I think we’re gonna see further upward revisions to consensus earnings,” he says. “This is what’s attractive about the gold space right now.”

Major’s favorite gold stocks are Barrick Gold , Newmont , and Endeavour Mining . More on those in a moment. We also have thoughts on how not to buy gold—and what not to expect it to do: Don’t count on it to keep beating stocks long term, or to provide precise short-term protection from inflation spikes and stock swoons. But first, a little history, chemistry, and rules of the yellow brick road.

Flesh of the Gods

The first gold coins of reliable weight and purity featured a lion and bull stamped on the face, and were minted at the order of King Croesus of Lydia, in modern-day Turkey, around 550 B.C. But by then, gold had been used as a show of riches for thousands of years. Ancient Egyptians called gold the flesh of the gods, and laid the boy King Tutankhamen to rest in a gold coffin weighing 243 pounds. The Old Testament says that under King Solomon, gold in Jerusalem was as common as stone. Allow for literary license; silicon, an element in most stones, is 28.2% of the Earth’s crust, whereas gold is 0.0000004%.

Marco Polo described palace walls in China covered with gold. Mansa Musa I of Mali in West Africa, on a pilgrimage to Mecca in 1324, is said to have splashed so much gold around Cairo on the way that he crashed the local price by 20%, and it took 12 years to recover. To Montezuma, the Aztec king whose gold lured Cortés from Spain, the metal was called, as it still is by some in Central Mexico, teocuitlatl —literally, god excrement. Golden eras, gold medals, the Golden Rule, and golden calf—so deep is the historical association between gold and wealth, excellence, and vice that it seems to have a mystical hold on humanity. In fact, it’s more a matter of chemical inevitability.

Trade and savings are easier with money. Pick one for the job from the 118 known elements. Years ago on National Public Radio, Columbia University chemist Sanat Kumar used a process of elimination. Best to avoid elements that are cumbersome gases or liquids at room temperature. Stay away from the highly reactive columns I and II on the periodic table—we can’t have lithium ducats bursting into flame. Money should be rare, unlike zinc, which pennies are made from, but not too rare, unlike iridium, used for aircraft spark plugs. It shouldn’t be poisonous like arsenic or radioactive like radium—that rules out more elements than you might think. Of the handful that are left, eliminate any that weren’t discovered until recent centuries, or whose melting points were too high for early furnaces.

That leaves silver and gold. Silver tarnishes, but rarer, noble gold holds its luster. It is malleable enough to pound into sheets so thin that light will shine through. And, despite the best efforts of Isaac Newton and other would-be alchemists, it cannot be artificially created—profitably, anyhow. Technically, there is something called nuclear transmutation. If you can free a proton from mercury’s nucleus or insert one into platinum’s, you’ll end up with a nucleus with 79 protons, and that’s gold. Scientists did just that more than 80 years ago using mercury and a particle accelerator. But what little gold they produced was radioactive. If you think you can do better, you’ll likely need a nuclear reactor to prove it, but a large gold mine is one-fifth the cost, and we have to believe the permitting is easier.

We passed over copper due to commonness, but it has become too valuable to use for pennies. The 95% copper content of a pre-1982 penny is worth about three cents today. The equivalent amount of silver goes for $3.10, and gold, more than $320. But the three trade in different units. A pound of copper is up 17% this year, at $4.72. Silver and gold are typically quoted per troy ounce, a measure of hazy origin and clear tediousness, which is 9.7% heavier than a regular ounce. A troy ounce of silver is $32.70, up 13% this year.

Some Finer Points

Confused? This won’t help: The purity of investment gold, called its fineness, is measured in either parts per thousand or on a 24-point karat scale. A karat is different from a carat, the gemstone weight, but our friends in the U.K.—who adopted troy ounces in the 15th century—often spell both words with a “c.” Gold bricks like the ones central banks swap are called Good Delivery bars, and weigh 400 troy ounces, give or take, worth more than $1.3 million. If you buy a few, lift with your legs; each weighs a little over 27 regular pounds (as opposed to troy pounds, which, it pains us to note, are 12 troy ounces, not 16).

There are many options for smaller players, like Canadian Maple Leaf coins, which are 24-karat gold; South African Krugerrands, at 22 karats, and alloyed with copper for durability; and Gold American Eagles, 22 karats, with some silver and copper. Proof coins cost extra for their high polish, artistry, and limited runs, and may or may not become collectibles. Humbler-looking bullion coins are bought for their metal value. Prefer the latter if you aren’t a coin hobbyist. Avoid infomercials and stick with high-volume dealers. Even so, markups of 2% to 4% are common. Costco Wholesale , which sells gold in single troy ounce Swiss bars, charges 2%, but often runs out, and limits purchases to two bars per member a day. Factor in the cost of storage and insurance, too.

ETFs are more economical. For example, iShares Gold Trust costs 0.25%, not counting commissions. For long-term holders, as opposed to traders, there is a smaller fund called iShares Gold Trust Micro , which costs 0.09%.

Resist fleeing stocks for gold. The surprisingly long outperformance of gold is mostly a function of its recent run-up. From 1975 through last year, gold turned $1 invested into about $16, versus $348 for U.S. stocks. That starting point has a legal basis. President Franklin Roosevelt largely outlawed private gold ownership in 1933; President Richard Nixon delinked the dollar from gold in 1971; and President Gerald Ford made private ownership legal again at the end of 1974.

Gold has been a so-so inflation hedge over the past half-century, and at times a disappointing one. In 2022, when U.S. inflation peaked at a 40-year high of over 9%, the gold price went nowhere. The problem is that high inflation can prompt a sharp increase in interest rates. “If people can clip a 5% coupon on a T-bill, often they’d prefer to do that than have either a lump of metal or an ETF that doesn’t produce cash flow,” says BlackRock’s Koesterich.

Likewise, while gold has generally offset stock declines this year, it hasn’t always done so in the heat of the moment. Recall tariff “liberation day” early this month, which sent U.S. stocks down close to 11% in three days and pulled gold down nearly 5%. “This isn’t an uncommon scenario,” says RBC’s Louney. “When investors were losing elsewhere in their portfolio, gold was sold as well to cover those losses.”

Our top tip on how gold behaves is this: It doesn’t. People do the behaving, and they are appallingly unreliable. Use bonds as a stock market hedge. If they don’t work, fall back to patience. For inflation protection, think of assets that are a better match than gold for the goods and services that you buy every week. A diversified commodities fund has precious metals but also industrial ones, along with energy and grains. Treasury inflation-protected securities are explicitly linked to the consumer price index, which measures inflation for a theoretical individual whose buying patterns differ from your own, but are close enough.

Own a house. Stick with a workaday, reliable car. Yes, cars deteriorate. But so does nearly everything on a long enough timeline. Rely mostly on stocks, which represent businesses, which wouldn’t endure if they couldn’t turn raw inputs like commodities into something more profitable. There’s even a miner, Newmont, in the S&P 500.

The Case for Mining Stocks

Speaking of which, UBS’ Major recently upgraded both Canada’s Barrick and Denver-based Newmont from Neutral to Buy. “Both very much fall into that category of having a challenging recent track record,” he says. Newmont has lost 20% over the past three years while gold has gained 76%, which Major blames on difficult acquisitions and earnings shortfalls. Barrick, down 8%, has been in a dispute with Mali since 2023, when its government instituted a new mining code that gives it a greater share of profits. In recent days, authorities have shut the company’s offices in the capital city of Bamako over alleged nonpayment of taxes.

These are the sort of headaches that Krugerrands in a safe don’t produce. But Major calls expectations “adequately reset,” free cash flow attractive, and guidance achievable. Newmont, at 13 times next year’s earnings consensus, is selling assets, and Barrick, at 10 times, has healthy production growth.

Major also likes London-based, Toronto-listed Endeavour Mining , up 40% over the past three years and trading at nine times earnings, although he says it has “higher jurisdictional risk.” It is focused on West Africa, especially Burkina Faso, which had a coup d’état in 2022. You’d think the stock would be doing worse amid such political upheaval. Then again, Burkina Faso since 1966 has had eight coups, five coup attempts, and one street ousting of a president who tried to change the constitution to remain in power. That works out to an uprising every four years, on average.

Montezuma’s scatological name for gold might have been prescient, considering the sometimes-odious consequences for small countries that find it.