In a stunning geopolitical shift, US imports from Taiwan (a nation of <30M people) have surpassed those from mainland China as of early 2024. This dramatic change is driven by the AI boom and soaring demand for TSMC's advanced chips, fundamentally re-weighting US economic dependencies in Asia.

TSMC's new Arizona factory can produce NVIDIA's advanced chips, but this doesn't solve US supply chain dependency. The chips must still be shipped back to Taiwan for the critical advanced packaging stage, meaning the primary bottleneck remains firmly in Asia despite onshoring manufacturing.

While TSMC's Arizona expansion has been complex, it's already achieving yields comparable to its Taiwan facilities. An expert believes this success comes at a price, with higher costs likely being a permanent feature of US-based manufacturing.

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.

Banning chip sales to China reduces its reliance on Taiwan's TSMC, lowering the economic cost of an invasion. Resuming sales re-establishes this crucial economic link, creating a powerful disincentive for conflict and acting as a geopolitical stabilizer, despite seeming counterintuitive to gaining a direct AI advantage.

Ben Thompson presents a counterintuitive geopolitical argument: allowing China dependency on Taiwan for semiconductors creates a safer equilibrium. Cutting China off removes this critical dependency, potentially making a military strike on TSMC an optimal, if devastating, strategic move for Beijing.

The US is allowing Nvidia to sell advanced chips to China again. The strategic calculus has shifted from simple resource hoarding to geopolitics: keeping China dependent on Taiwan's TSMC makes an invasion less likely, as it would destroy the very supply chain China needs for its AI ambitions.

The effectiveness of US export controls on advanced AI chips stems from a deep technological gap. According to China's own projections, it won't be able to domestically produce chips as powerful as those the US is restricting until 2028, creating a significant and lasting strategic advantage for democracies.

Recent statements from the CCP suggesting a "peaceful reunification" with Taiwan, potentially driven by an energy crisis, amplify the geopolitical risk to TSMC. This makes investments in non-Taiwanese fabs, like those from Samsung and Intel, strategically critical for the American tech industry.