Commentary: The Thucydides trap and TSMC's COUPE

The renewed invocation of the Thucydides Trap by U.S.-China leadership directly injects geopolitical friction into the semiconductor nexus—TSMC. Technically, Washington will likely accelerate 'de-Taiwanization' of advanced nodes, pushing a U.S.-Japan-EU coalition to build redundant sub-2nm capacity, inflating global foundry costs by over 15%. Compliance risks surge: TSMC’s Arizona and Japan fabs now face stricter export controls, potentially delaying equipment deliveries by 6–9 months. Samsung and Intel will exploit this to strengthen subsidy negotiations—Samsung leveraging South Korea’s perceived neutrality, Intel tying CHIPS Act funds to captive customer contracts. Within 18 months, advanced packaging and EDA toolchains will fracture along regional lines, with U.S.-led Chiplet ecosystems decoupling from China’s RISC-V stack. TSMC’s COUPE strategy, while customer-centric on surface, reveals its fatal vulnerability: technological neutrality is obsolete—geopolitical alignment is now the dominant operational variable for hard-tech firms.