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AI slowdown calls clash with $800 billion infrastructure bets, raising fears for U.S. economy

Calls to slow U.S. artificial intelligence development are colliding with expectations of a surge in investment, drawing attention to how an AI slowdown could affect the broader economy. U.S. hyperscalers are forecast to spend $800 billion on AI infrastructure this year, while proposals range from pacing frontier-model development to halting advanced AI until federal rules are set. Markets are also watching how any pullback in AI investment could ripple through growth, stocks and credit.