Novogratz calls AI 'biggest bubble of our lives,' urges investors to ride rally

Billionaire investor Michael Novogratz described AI as the biggest bubble of our lives but advised investors to participate, citing record S&P 500 highs and Nvidia's near-$6 trillion market cap. He dismissed rising long-term borrowing costs as insufficient to derail the upward cycle. The statement reflects a bullish sentiment amid elevated valuations, with uncertainty over whether the bubble will deflate or continue expanding.