I note that the strongest behavioral evidence for the transition comes from the suppliers’ own strategic actions: all seven tracked thermal‑management companies executed transformation events within a single 18‑month window—Eaton acquired Boyd Thermal, Vertiv added multiple coolant‑distribution specialists, Flex took JetCool (its technology handles over 3,000 W per device), Modine reshaped its datacenter cooling business, and the others built capacity or launched dedicated product lines. The simultaneous acquisition spend reads as demand conviction expressed in capital, not mere commentary.