Steve Eisman, the investor famed for his 'Big Short' bet against the U.S. housing market, has warned that artificial intelligence (AI) is 'one trade' and predicts a 'big correction' if the sector fails to meet investors' high expectations. Eisman revealed he has reduced his own exposure to AI by selling his long-held Alphabet shares. He expressed concern that too much money has poured into the sector, making portfolios overly concentrated in AI-related companies, even for those who believe they are diversified. While he believes AI technology will be transformative, he cautioned that successful technology does not always translate into successful investments, drawing parallels to the dot-com bubble.