Financing the AI boom: from cash flows to debt [pdf]

BIS released a larger report in June that identified AI financing/sustainability as one of the biggest risks for the global economy:

https://www.bis.org/publ/arpdf/ar2026e.htm

I've seen other reports that suggest the level of investment for eclipses the internet buid out in 2000 and the railroad boom more than a century earlier. I wonder if they use different ways of landing on these wildly different assessments

High growth scenario and medium growth scenario (Graph 2). I feel like an idiot asking - aren't we missing some, or at least one, scenario? Is "medium growth" for the next 4 years really the worst people can think of?

(January 2026)