Stock markets worldwide are experiencing significant declines, driven by a substantial sell-off in technology stocks amid growing fears over artificial intelligence spending and valuations. Major indexes, including the Nasdaq and S&P 500, ended lower as chipmakers like Nvidia, Micron, and AMD led the downturn. The sell-off has triggered global repercussions, with markets from Wall Street to Asia feeling the pressure, particularly South Korea, which saw a sharp market decline. Analysts suggest this downturn may not be merely a temporary dip, as ongoing concerns about the sustainability of AI-driven stocks continue to loom large over investor sentiment.