“What is written without effort is in general read without pleasure.” Samuel Johnson

With that said, I wondered what Buffett would write if he did a Fortune 1999 article update today. We will never know but with some prompts and a couple of iterations, this is what Gemini has come up with. Although this is AI slop, I post it, to ask if any of the human intelligence that might decide to review and correct or comment. I have asked Gemini to be as brief as possible and given it pointers on areas for discussion. Nothing you haven’t heard before. Summary would be updates on the 1999 Buffett numbers (it’s worse now) and discussion of a few of the unhealthy areas of the markets.

Here it is…

Mr. Buffett’s 2026 Perspective: A Mathematical Reality Check

By Warren E. Buffett (aka Gemini)

Twenty-six years ago, sitting at my desk in Omaha in the twilight of 1999, I penned an article for Fortune warning that investors were expecting far too much from the stock market. At the time, the air was thick with the magic of the internet, and the value of American business had soared to a historic 140% of our nation’s Gross Domestic Product (GDP). I suggested then that expecting the good times to keep rolling at that pace was a mathematical impossibility. The market, as it tends to do when math is ignored, delivered a rather painful correction shortly thereafter.

Today, looking across the landscape, I find myself experiencing a strong sense of déjà vu—except this time, the numbers have grown significantly larger, and the assumptions driving them have become even bolder.

To understand where investors are likely heading over the next ten to fifteen years, we must return to the same cold, unchanging pillars of economic reality: interest rates, corporate profits, and the total value of American business relative to the economy.

Key Data Points: The Reality Check

* The Valuation Peak: The total value of U.S. business has climbed to an unprecedented ~220% of GDP ($69 trillion market cap vs. $31.5 trillion GDP). This drastically eclipses the 140% peak seen during the 1999 dot-com bubble, which I warned at the time was playing with fire.

* The Shiller P/E Extreme: The Cyclically Adjusted Price-to-Earnings ratio sits at roughly 41.9x. Outside of a brief spike to 44x right before the 2000 crash, American stocks have never been this expensive relative to their long-term earning power.

* Economic Gravity Returns: The yield on the 10-year U.S. Treasury has rebounded to 4.5% – 4.6%. Unlike the zero-rate environment of the last decade, safe bonds now offer real competition for capital, yet equity prices continue to behave as if this gravity does not apply.

* The Profit Margin Dilemma: After-tax corporate profits have shattered historical norms, jumping from a decades-long average of 4%–6% of GDP to a massive 12.4% of GDP. To justify today's stock prices, you must gamble that these historic corporate profit margins can be maintained permanently without reverting to the mean.

* The CapEx & AI Paradox: The market's excitement is anchored in Artificial Intelligence, pushing the top ten megacaps to an extreme 35% to 40% concentration of the entire S&P 500. While AI has immense societal potential, these giants are pouring tens of billions into capital expenditures. Economics demands a high return on that massive capital deployment, leaving absolutely zero margin for error if monetization falls short.

* The Wall Street Casino: Driven by instant communication and friction-heavy trading apps, the market exhibits far more casino-like behavior than ever before. The explosion of one-day options represents pure gambling rather than investing; nobody can rationally predict a 24-hour wheel spin, and the House always wins over time.
Hidden Cockroaches: Private Credit and Accounting Illusions
While the public stock market operates like a loud, bright casino, a quieter but equally dangerous game is being played in the dark corners of the financial system.

* The Private Credit Boom: Because post-2008 regulations curbed traditional bank lending, a massive, unregulated $3 trillion private credit market has filled the void. Private equity funds and asset managers are now lending directly to highly leveraged businesses.

* The PIK Toggle Trick: With interest rates rebounding to 4.5%, many corporate borrowers can no longer afford to service their debts with actual cash flow. To hide the rot, lenders are increasingly relying on Payment-in-Kind (PIK) toggles. Instead of paying interest in cash, the borrower simply rolls the unpaid interest back into the principal balance of the loan. It is an accounting trick that compounds the debt, deferring the day of reckoning while pretending everything is fine.

* Dumping Risk on Retail: Originally, this was a playground for sophisticated institutions. Today, these exact same illiquid, high-risk loan portfolios are being repackaged and sold off through Independent Financial Advisors (IFAs) to ordinary retail investors under the guise of "stable, high-yield income."

* The Perversion of Private Valuations: The entire private equity and credit complex relies on a spectacular perversion of incentives: the absolute refusal to mark assets to market. Public stock managers must face the reality of daily market prices. Private market managers, however, are permitted to mark assets to their own internal models. By substituting actual market price discovery with smooth, manufactured private valuations, managers hide volatility, collect massive fees, and deceive investors into thinking they have found a safe haven. But as I have always said, you only find out who's swimming naked when the tide goes out.

The Unwinding Tokens
Finally, we cannot ignore the latest speculative mania: the long crypto bubble, which after years of frantic trading, is showing distinct signs of beginning to unwind.
I have spent years explaining that an asset must produce something—a crop, a product, or a cash flow—to have intrinsic value. Non-productive assets are entirely dependent on the "Greater Fool" theory: the hope that someone else will pay you more tomorrow for something that produces nothing today.
As liquidity tightens across the globe, the speculative fever that drove these digital tokens to unimaginable heights is breaking. When a casino-driven bubble begins to lose its momentum, it doesn't just deflate gracefully—it tends to expose the massive leverage beneath it.

The Fabric of the Republic: Inequality and the Corrosive Divide
Beyond the numbers inside our spreadsheets, we must confront a deeper, more structural risk to our American system. A market economy cannot function smoothly if a vast portion of its citizens feel the game is entirely rigged against them.

* The Widening Wealth Gap: Since 1999, corporate profits have soared to that 12.4% slice of the GDP pie, but those gains have flown almost exclusively to the very top. A market system that generates staggering wealth for the owners of capital while leaving the average worker's purchasing power stagnant is fundamentally unsustainable over the long run.

* The Corrosive Political Divide: This economic divergence has fueled a deep, corrosive political polarization, with dangerous excesses on both sides of the aisle. When democratic institutions break down into ideological tribalism, the stable, predictable legal and social frameworks that allowed American capitalism to thrive for over two centuries begin to fray.

* The Need for Tax Reform: Our tax code has drifted far out of alignment with fairness. It remains a mathematical absurdity that a multi-billionaire can pay a lower effective tax rate than their secretary. Meaningful tax reform is not about stifling ambition; it is about ensuring the system funds the society that makes that wealth possible in the first place. If we do not voluntarily strengthen the social safety net and adjust the rules of the game via a sensible tax structure, the market risks a much more chaotic, involuntary disruption down the road.

The 15-Year Outlook
Basic arithmetic dictating price paid versus future cash flow means buying at a 220% Market Cap-to-GDP ratio chains an iron ball to your returns. Expect aggregate nominal returns over the next decade to hover at a modest 3% to 4% annually, barely moving your real purchasing power after inflation.

Charlie Munger always said the first rule of compounding is to never interrupt it unnecessarily. The second rule is to avoid paying a price so high—or taking risks so obscured by financial engineering—that you experience permanent loss of capital.