NYC took decades to build 2.9km of subway; Su mocks it against Guangzhou Metro
suchenzang · x · 2026-11-02
AI researcher Su (@suchenzang) mocked NYC infrastructure: Phase 1 of the Second Avenue Subway cost $4.45B for just 2.9km of tunnel, with Phase 2 adding $6B more. She contrasted it with Guangzhou Metro, which opened in 1997 and now runs 19 lines, 399 stations, and 779.9km — joking that drilling straight through NYC would be faster than building one line per decade.
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