John Belizaire and his company's stock price have been on a roller coaster ride. Soluna connects clients with big computer processing needs to the energy to power those calculations. Because it was so heavily tied to Bitcoin mining, the share price has risen and fallen with the cryptocurrency and is now down more than 3000% from its 2021 peak.

But John is convinced that he and his team are solving big problems, like how to efficiently power data centers. Instead of requiring utilities to build expensive new infrastructure in highly populated areas, Soluna locates its data centers next to renewable energy assets like wind farms, where the marginal cost of a kilowatt-hour is minuscule. And he spends a fair amount of his time on social media explaining this approach.

It's fascinating. Even though Soluna is a public company, it leverages  ...