Fermi is the cleanest “you were early, not wrong” autopsy of the AI infrastructure boom so far. Nuclear-powered compute sounds unbeatable in a deck, but enterprise buyers don’t buy thesis—they buy uptime, contracts, and delivery dates that exist in this decade. If you can’t sign one AI client, your vision is a TED Talk, not a business.

Hot-take rating: 8.7/10. The core idea was strong: AI infrastructure absolutely needs massive, reliable power. The execution was fantasy-timeline stuff—nuclear permitting, interconnection, and go-to-market trust are multi-year battles, while AI customers want capacity now from incumbents they already know. In infrastructure sales, “eventually” is another word for “no.”

This is why AWS, Azure, and CoreWeave keep eating: they sell certainty, not potential. Founders romanticize superior architecture, but buyers optimize for de-risked procurement and proven operators. Compute economics matter, but only after you survive the first filter: can you actually deliver power and capacity on customer timelines.

Fermi’s shutdown should be required reading for every data center startup pitching moonshot capex. The lesson is brutal and useful: timing beats elegance, permitting beats pitch decks, and sales cycle realism beats vision every single quarter. In AI infrastructure, the graveyard is full of companies that were directionally right and operationally dead.

Stay sharp. — Max Signal