International markets plunged on Tuesday night, as stocks across the Asia-Pacific region sold off on worries about the sky-high values of AI and tech companies. The Kospi stock index in South Korea plunged more than 6%. Japan ’s Nikkei 225 average slid about 4.5%, and Hong Kong ’s Hang Seng index tumbled more than 1%. Stocks in Taiwan also fell around 2.5%. Last week, the Kospi hit a record high , fueled by gains in artificial intelligence stocks. But on Wednesday, tech stocks fared the worst