U.S. GDP growth in the first half of 2025 was almost entirely driven by investment in data centers and information processing technology, according to Harvard economist Jason Furman. Excluding these technology-related categories, Furman calculated in a Sept. 27 post on X.com GDP growth would have been just 0.1% on an annualized basis, a near standstill that underlines the increasingly pivotal role of high-tech infrastructure in shaping macroeconomic outcomes.