The financial world has found its next get-rich-quick obsession, and this time it is literally off the planet. Helium-3, a rare isotope that does not exist in meaningful quantities on Earth, is now being pitched as the solution to everything from clean energy to geopolitical dominance — and naturally, as an investment opportunity that cannot possibly fail.

Here is the pitch: Helium-3 sits on the lunar surface, waiting to be scooped up by anyone with a mining permit and a spaceship. Demand is forecast to soar. Therefore, the logic goes, get in early and retire on moon dust profits. It is the same reasoning that convinced people to buy Dogecoin because a dog was involved.

What makes this genuinely funny is that we have solved exactly zero of the problems that would make lunar mining viable — launching equipment costs millions per kilogram, we have no infrastructure on the moon, and no one has actually figured out how to extract, refine, and transport Helium-3 back to Earth profitably. But these are details. Retail investors are already opening brokerage accounts and squinting at lunar mining company stock tickers like they are reading tea leaves.

The absurdity is almost admirable. We have moved from “there is gold in them hills” to “there is fusion fuel on that rock 240,000 miles away.” The investment thesis requires you to believe that the regulatory, logistical, and engineering problems that have stumped NASA, the ESA, and China will somehow be solved by a startup with a PowerPoint deck and venture capital.

Moon water is not an investment. It is a fantasy that lets people feel like they are ahead of the curve while actually just being early to a very expensive lottery.