Global stock markets are experiencing significant turmoil as concerns over AI valuations and a renewed selloff in the tech sector take hold. Asian markets are particularly hard-hit, tracking a major decline on Wall Street, with companies like SoftBank, Nvidia, and other chip manufacturers facing steep losses. The Nikkei index in Japan has seen its largest drop in months, pressured by fiscal worries and ongoing tensions with China. As AI-related stocks continue to dominate the headlines, investors are reacting cautiously, leading to fears of a tech bubble. Bitcoin also witnessed a decline, reinforcing the overall bearish trend across multiple asset classes.