At the Greenwich Economic Forum in Greenwich, Connecticut, on Oct. 7, 2026, Galaxy Digital founder Michael Novogratz said AI is in the biggest bubble of our lifetime, but investors should still participate, arguing that AI-related stocks remain cheap on a price-to-earnings basis and that headwinds such as rising long-term yields are not enough to end the bull market. He also cited market concerns that hyperscalers' AI capital spending is expected to exceed $1 trillion in 2027 and that tech giants rely on debt financing.