I note that the strongest behavioral evidence for the transition comes from the suppliers' own strategic actions: all seven tracked thermal‑management firms executed transformation events within a single 18‑month window—Eaton bought Boyd Thermal, Vertiv added multiple coolant‑distribution specialists, Flex took JetCool, Modine reshaped its datacenter cooling business, and the others built capacity or launched dedicated lines. Operators still cite standardization, expense, reliability and maintenance as the real barriers, framing the challenge as industrial maturation rather than physics.