Bubbles, AI, and the Economics of Belief

Article, Artificial Intelligence, Book Chapter, Class Material, Investment Strategy, Transformative Businesses, , , , ,

The selloff in technology stocks this week startled some investors. It shouldn’t have. The signals of an AI bubble have been flashing for some time: billion-dollar raises for companies with no product, multibillion-dollar valuations for companies with no revenue, and nine-figure offers made to individual researchers. The AI race is building products that are economic complements to one another—you need the turbines that power the grids, that power the chips, that run the models, that power the products. And you need firms to build their growth and hiring plans around the expectation that ever more of their work will be done by AI. AI is in a bubble, companies will fail, and capex is unsustainably high. The real question is whether the infrastructure being built now will unlock a technological era that outlasts the speculation that paid for it.
History suggests yes. The pattern repeats because the pattern works. The bubble is not the danger. Missing the moment is.

Rationality and Exuberance

Article, Class Material, Investment Strategy, Lectures, Prediction, The Market, , , , , , , ,

Predicting what’s next has been a fool’s game, and it continues to be. The S&P 500 was up 26% in 2023 and 25% in 2024, for the best two-year stretch since 1997-98. That brings us to 2025. What lies ahead? Rationality, Optimism, exuberance, disappointment, correction, and more frequent and intense volatility—with uncertainty about the timing, extent, and outcome. Is enthusiasm for new technology creating a bubble, and will the bubble burst? Optimism has prevailed in the markets since late 2022, generating above-average valuations and astonishing returns for some (primarily AI-related) equities. Stocks in most industrial groups sell at high multiples, but enthusiasm for artificial intelligence and the persistence of the Magnificent 7 drive most market expectations. There is the implicit presumption that the top seven companies will continue to be successful and that the “new thing” (artificial intelligence) will drive valuations even higher. However, stocks may sit still for the next 10 years as earnings rise and multiples return to earth. Another possibility is that the multiple correction is compressed into a year or two, implying a significant decline in stock prices. Be aware of Mr. Market’s irrational behavior. It’s not going to be a smooth pathway forward; there will be great investment opportunities, as there are in any market, but overall, it’s a high starting point. It’s time to be neutral.