The BIS estimates the world's five largest technology firms will invest more than $1 trillion in AI between 2025 and 2026, while industry forecasts suggest global AI investment could grow from about $500 billion now to as much as $4 trillion by 2030.

The BIS estimates the world's five largest technology firms will invest more than $1 trillion in AI between 2025 and 2026, while industry forecasts suggest global AI investment…

Pablo Hernandez cited historical railway and dot-com bubbles to caution that spending driven by hype over actual profits risks broad economic corrections.