Federal Reserve Chair Kevin Warsh described the phenomenon as a distinct economic shock, noting that capital is flooding the demand side of the economy long before any corresponding supply-side efficiency materializes. Gathering in Bangkok for IMF and World Bank meetings, policymakers from the G20 expressed concern that this investment-driven fervor is unsustainable. Recent volatility in Asian tech stocks serves as a warning that any reassessment of overly optimistic earnings projections could trigger significant market instability.

This shift marks a departure from the post-2008 era of low inflation and excess savings. ECB policymaker Martins Kazaks noted that the global fight for capital is now a primary driver of borrowing costs, a trend compounded by heavy government spending on defense and energy. Consequently, the neutral interest rate—the level that neither stimulates nor restricts the economy—appears to be rising. South African Reserve Bank Governor Lesetja Kganyago admitted that while the trajectory is clear, the exact peak remains obscured by uncertainty.

For debt-laden nations, particularly within the euro zone, this environment of structurally higher rates presents a fiscal crisis. While the United States and parts of Asia lead the AI investment surge, Europe faces the dual burden of higher energy costs and strained public finances. ECB President Christine Lagarde signaled that countries like France must now prioritize domestic fiscal discipline to navigate this new era of expensive money.