Zuckerberg's bunker fuels speculation on billionaires building bunkers

Mark Zuckerberg's new $270M underground project in Kauai, featuring a blast-resistant door, has stirred speculation about other billionaires building similar bunkers. Peter Thiel is reportedly working on a bunker in New Zealand. The opulence and secrecy of the projects fuel speculation, suggesting billionaires may be preparing for global upheavals or crises, tapping into unique information sources.