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- Jeffrey Gundlach compared the AI-fueled boom in stocks to the dot-com bubble.
- DoubleLine Capital's billionaire CEO predicted sticky inflation and an economic slump.
- Two other market gurus, Bill Gross and John Hussman, warned of extreme stock valuations this week.
Jeffrey Gundlach has warned the AI-crazed stock market reminds him of the dot-com bubble — and predicted a painful mix of stubborn inflation and economic decline lies ahead.