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- The AI frenzy is similar to the crypto craze a few years ago, top economist Paul Romer said.
- The Nobel Prize winner called it "typical bubble hype" and predicted AI progress would slow sharply.
- A narrowing, AI-obsessed stock market could signal an economic slump ahead, another expert said.
The breathless buzz around artificial intelligence is similar to the rabid excitement that surrounded digital assets such as dogecoin and NFTs in recent years, a top economist warned.