SK Hynix Green-Lights ₩54 Trillion Yongin Y2 & Cheongju M17 Memory Fabs

This wager recalls Japan’s 1984-86 DRAM surge—billions poured into 256-K lines that briefly gave NEC 60 % share before a price crash—yet SK Hynix is betting the AI boom represents a structural break, not another silicon super-cycle. By accelerating its four-fab Yongin cluster, Seoul is reenacting the 1960s ‘H-Plan’ steel build-out: state-aided oversizing today to pre-empt strategic scarcity tomorrow. If AI model memory intensity keeps doubling every two years, these fabs could be the 22nd-century equivalents of early Trans-Siberian rail segments—critical, invisible infrastructure. If demand stalls, they risk repeating Intel’s 2008-era 3-D-XPoint write-off. Either way, the move deepens East Asia’s century-long consolidation of semiconductor production and shows how chips, like oil after 1910, have become the geopolitical commodity nations bankroll at almost any cost.