Let me be clear: I believe in the promise of AI. As a power user, I rely on multiple foundation models daily to streamline my work and solve problems faster than ever. The productivity is real, the tools are evolving quickly, and the cost per use keeps dropping. Naturally, I want to invest in the future I’m already living. And like many of my colleagues, I’ve tilted my portfolio to give a little extra love to AI-heavy tech stocks. But here’s the thing… I’m also an economist. Which means I’ve seen this movie before. And I know how it ends.

Wealth built on asset bubbles feels exhilarating until the floor gives out. As investors, professionals, and decision-makers, we owe it to ourselves to remember a basic truth: price may ride the wave, but value is tethered to the ocean floor. When the current recedes, the fundamentals remain. That is where wealth actually lives.

This article is a guide to navigating the excitement of asset bubbles, especially the AI boom, while staying grounded in financial reality. It draws on economic history, hard data, and the cautionary tales of past bubbles to offer a simple message: Invest, yes. But don’t forget to check your parachute.