U.S. stock futures opened lower as markets grappled with a wave of uncertainty triggered by a significant decline in bitcoin and worries surrounding artificial intelligence. The Dow is poised for a 300-point drop, while the S&P 500 and Nasdaq also show negative trends amid a commodities slump that has seen precious metals like gold and silver lose substantial value. This sell-off has been exacerbated by a sell-off in semiconductor stocks and speculation about upcoming key technology earnings and job reports. As investors remain cautious, the market braces for potential volatility driven by Fed updates and geopolitical tensions.