A recent small change in the chip industry has stirred the entire data center supply chain. AMD's stock price plummeted over 13%, Johnson Controls and Trane Technologies each fell more than 7%, and Vertiv also didn't escape, dropping over 3%. The trigger is simple—NVIDIA just released news that CEO Jensen Huang revealed at CES that Rubin server chips will use temperature cooling solutions, making traditional water cooling obsolete. With just this one statement, the market's imagination about data center cooling demand has been re-priced. Companies that previously gained valuation premiums from the AI data center demand wave were suddenly squeezed out. In plain terms, this reflects NVIDIA's absolute dominance in the AI industry chain—its strategic decisions are enough to change the entire ecosystem's value logic. For those interested in infrastructure investment, this is also a reminder: the technological route choices in the industry chain are often more impactful than they appear.