Billionaire investor Jim Mellon, executive chairman of Agronomics and author of Moo’s Law: An Investor’s Guide to the New Agrarian Revolution, delivered a sharply contrarian message in a late-February 2026 interview with Business Insider.
While many market participants remain optimistic about U.S. equities amid the AI boom, Mellon sees “way overpriced” valuations, warning signals in record margin debt, and a troubling convergence among Big Tech companies that have shifted from building distinctive competitive moats to making circular deals and pouring hundreds of billions into similar AI data-center build-outs.
Mellon pointed to a stark disparity: the United States, home to roughly 3% of the global population, accounts for more than 60% of world stock-market capitalization. He views this imbalance, combined with stretched multiples and high leverage, as unsustainable.
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“The fact Warren Buffett’s Berkshire Hathaway is sitting on more than $350 billion in cash is telling you that he sees something in the current world situation that isn’t very positive,” Mellon said, referring to the recently retired CEO’s record liquidity position.
Rather than chase U.S. equities, Mellon has been a vocal bull on gold and silver for several years, arguing that persistent government policies worldwide are eroding the purchasing power of national currencies. He remains skeptical of cryptocurrencies, saying he is “reluctant to jump on the crypto bandwagon.” Instead, he identifies the energy sector as “probably the best place to invest right now.”
The AI boom’s insatiable demand for power — straining electric grids and driving massive data-center build-outs — has made energy infrastructure “highly underpriced as a percentage of world stock markets,” he explained. He also sees selective bargains outside the U.S.: attractive opportunities in the United Kingdom and certain emerging markets. China, however, is a hard pass.
“I would be very, very careful in China given the hazards of foreign ownership and state control,” Mellon said, and he would “totally avoid the US market” at current levels.
On currencies, he recommends holding Japanese yen, which he described as “extremely cheap” versus the dollar and now offering higher yields thanks to the Bank of Japan’s gradual rate normalization.
Mission to Transform the Global Food System
Beyond macro investing, Mellon is deeply committed to cellular agriculture and precision fermentation — technologies that grow meat, fish, dairy, and other proteins directly from cells or microbes in bioreactors rather than through traditional livestock farming. As executive chairman of Agronomics, he backs companies developing cultivated beef, poultry, seafood, and egg proteins, as well as dairy and oil alternatives produced via fermentation.
He argues the current food system is fundamentally broken. Industrial livestock farming contributes heavily to greenhouse-gas emissions, drives deforestation, consumes vast amounts of water and land, raises serious animal-welfare concerns, and exposes consumers to hormones, antibiotics, heavy metals, and microplastics.
Mellon believes “clean food” produced in controlled bioreactors can dramatically reduce environmental damage, eliminate many health risks, and improve animal welfare — all while eventually becoming cheaper than conventional methods.
Cost has already fallen sharply, he said, and at commercial scale, bioreactor-based beef or pork could soon undercut traditional animal agriculture.
“If I don’t make any money out of this, it doesn’t matter,” Mellon told Business Insider. “I’m on a mission to transform the global food system because of how sick it has made so many people, how much it contributes to the climate crisis, and how badly many farmed animals are treated.”
Advice for Young People in the AI Era
Asked how younger generations can thrive in an environment where housing feels unaffordable, and AI threatens to automate large swaths of white-collar work, Mellon struck an optimistic, action-oriented tone. Despite widespread anxiety, he sees abundant hiring opportunities.
“We were all freshly out of school at one point, and we were all given a chance, and we should be giving it to other people,” he said. “And now is the opportunity to get bright people at reasonable rates when they are in a very competitive environment to find positions.”
He urged young people not to “retreat into a shell because you read all this negative stuff” or “worry about it too much.” Instead: “Just get out there and do something.”
Mellon argued that AI will not eliminate the need for human connection. “One has to think there are going to be jobs that involve empathy,” he said.
The social care and elderly care sectors, already strained by aging populations, will become even more valued. He noted that a generation was encouraged to learn coding just 10–15 years ago, only to see those roles now among the most threatened by AI.
Betting everything on today’s hottest technical skill is “probably not the right way to go.” In a separate comment, Mellon, who has 10 dogs and no children, endorsed a radical idea: a 100% inheritance tax, with proceeds used to give every young person a lump-sum payment at the start of adulthood.
“Instead of starting your life worrying all the time about money and trying to get enough money to buy a house, you actually have some money to go do something to begin with,” he said.
Mellon’s views reflect a blend of macro caution, commodity bullishness, and long-term optimism about human adaptability. His bearishness on U.S. stocks contrasts with the continued rally in AI-related names, while his energy and precious-metals focus aligns with persistent inflation concerns and geopolitical risk premiums.
His food-system crusade, backed by real venture capital through Agronomics, positions him as one of the most prominent investors betting on cellular agriculture as a multi-trillion-dollar opportunity.
In Mellon’s unequivocal message to younger generations, the future is not predetermined by headlines or technological forecasts. Instead, action, human connection, and resilience will remain in demand — even in an AI-augmented world.