By Sasha Rogelberg
Publication Date: 2025-11-24 16:23:00
Michael Burry has doubled down on his concerns of an AI bubble, drawing similarities between Cisco during the late-‘90s dotcom crash and one key tech company today.
In his first Substack post, “The Cardinal Sign of a Bubble: Supply-Side Gluttony,” published on Sunday, Burry, made famous for his prescience on the 2008 housing market collapse as portrayed in the 2015 film The Big Short, called the AI boom a “glorious folly,” singling out Nvidia as a harbinger for when he expects the industry’s bubble to burst.
“Folly makes money. Creative destruction and manic folly are exactly why the U.S. is the center of innovation in the world,” Burry said. “Companies are allowed to innovate themselves to death. And ever more spring up to do the same. Sometimes the new company is the same company on a pivot.”
During the dotcom boom, Burry said, the tech industry was defined by “highly profitable large-caps, among which were the so-called Four Horsemen of the…
