Despite geopolitical tensions, Taiwan's world-leading semiconductor fabs are completely dependent on specialty gases imported from mainland China. An export restriction on a single chemical, like NF3, could shut down the entire Taiwanese chip industry, an often-overlooked vulnerability.

Taiwan's entire economy, particularly its critical semiconductor industry, runs on imported Liquefied Natural Gas (LNG) with less than three weeks of reserves. A naval blockade lasting longer than that would shut down the island and its fabs, an act with twice the economic impact of the Great Depression.

Even a brief closure of the Strait of Hormuz has immediate, lasting effects. Shutting in millions of barrels of oil and LNG damages production facilities, which can take over 60 days to bring back online, ensuring a recession even if the conflict ends quickly.

With only 11 days of LNG reserves and sea lanes controllable by China's navy, Taiwan's extreme energy import dependency is an existential threat. A naval blockade could strangle its economy and shut down its power grid without a single shot being fired.

The extreme energy intensity of advanced chipmaking creates a critical vulnerability. In Taiwan, the world's leading chip producer, a single major manufacturer uses up to 10% of the country's total power. This high-stakes dependency is amplified by Taiwan's limited LNG storage of only about one and a half weeks.

A major risk in a Taiwan crisis is not just war but a pre-conflict financial shock. Investors, anticipating conflict, could "front run" the crisis by liquidating positions in TSMC and related tech, potentially causing a Lehman Brothers-style contagion before any military engagement begins.

With 97% of high-end chips and 72% of the global foundry market controlled by Taiwan, specifically TSMC, any disruption—from military blockade to cyberattack—would trigger an 'economic apocalypse.' This massive over-concentration creates a singular, fragile chokepoint with no short-term alternative, threatening the entire global economy.

Ken Griffin provides a stark economic forecast: if the US loses access to Taiwanese semiconductors, its GDP would plummet by 8% within six months. This would halt manufacturing for critical industries like automotive and aerospace, plunging the economy into a modern-day Great Depression.

Dan Sundheim identifies a potential conflict with China over Taiwan's semiconductor dominance as the single biggest tail risk to the global economy. Since Taiwan produces over 90% of advanced chips, a disruption to this fragile supply chain would be catastrophic, potentially triggering an economic crisis on the scale of the Great Depression.