Should we fear an AI bubble bust? Recent swings in tech stocks are reviving fears of an AI bubble, with experts warning that a potential bust could cause unprecedented fallout. Wharton professor Itay Goldstein cites indications of overpricing and a likely bubble in the AI sector. WASHINGTON – Recent swings in tech stocks are reviving fears of an AI bubble — and some experts warn that if it pops, the fallout could be bigger than anything Wall Street has ever seen. “There are many indications that we are in a bubble,” said Itay Goldstein, a finance professor at the University of Pennsylvania’s Wharton School. “It seems likely that there is overpricing,” he added.