World Economic Forum Chairman Borg Brende has highlighted the risk of three potential bubbles in global financial markets: cryptocurrencies, artificial intelligence, and debt. Speaking in São Paulo, Brende emphasized that government debt levels are at their highest since 1945, raising concerns about a debt bubble. He also noted that while AI offers productivity benefits, it poses a threat to white-collar jobs, potentially leading to economic shifts similar to the 'Rust Belt' phenomenon. Recent layoffs by companies like Amazon and Nestlé underscore these risks.