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# Can AI's Trillion-Dollar Spending Boom Justify Its Economics?
- URL: https://adjacent.media/signals/can-ais-trillion-dollar-spending-boom-justify-its-economics/
- Published: 2026-10-29T16:15:37.000Z
- Updated: 2026-10-29T16:15:37.000Z
- Description: Paul Krugman is asking the uncomfortable question that venture capital and corporate earnings calls have deferred: whether the staggering capex commitments to AI infrastructure will actually generate returns that cover their costs.
- Author: Jonathan Greene
- Tags: #signal, theme-commerce, funding, investment, ai economics

Source: [Paulkrugman](https://paulkrugman.substack.com/p/will-the-ai-investment-splurge-last)

Paul Krugman is asking the uncomfortable question that venture capital and corporate earnings calls have deferred: whether the staggering capex commitments to AI infrastructure will actually generate returns that cover their costs. The spending splurge is real and reshaping capital allocation across tech and energy sectors, but there's a widening gap between the infrastructure investments and proven commercial applications. That gap typically precedes either genuine productivity gains or a sharp retrenchment in spending priorities.