[IMF: The scale of global AI investment may exceed US$2 trillion in 2026, and debt financing dependence will simultaneously expand] On September 25, the International Monetary Fund (IMF) released its latest annual report, citing external estimates that the scale of global artificial intelligence (AI) investment led by the private sector this year may exceed US$2 trillion, becoming one of the strongest driving forces for economic growth in recent years. The report points out that investment in AI-related technologies is estimated to drive 0.5 percentage points higher in U.S. GDP growth in 2025, while the U.S.’s productivity growth has accelerated in recent years, which to some extent also reflects the early positive impact of AI applications. However, the report also warned that there are hidden worries behind the AI ​​investment boom. As the scale of related infrastructure and projects continues to expand, some high-cost investments increasingly rely on debt financing. Once future returns fail to meet expectations, it may trigger chain effects such as significant adjustments in asset valuations, shrinking wealth, and corporate layoffs.