Understanding the LLM Bubble
The article examines the debate over whether massive investments in AI and Large Language Models (LLMs) represent a sustainable path to economic growth or an inflated bubble poised to burst. It argues that current LLM technology faces inherent limitations that prevent it from achieving superintelligence or generating sufficient economic value to justify trillions in spending. The piece suggests the boom has been artificially sustained by investor narratives rather than sound business models, drawing parallels to past tech ventures like Uber.
- ▪Investment in AI data centers accounted for about half of current U.S. GDP growth and exceeded consumer spending's share.
- ▪The equity value of seven major GenAI-linked companies grew by $16 trillion over three years, representing a third of all U.S. listed companies' equity value.
- ▪The LLM industry's viability depends on achieving superintelligence by 2028, but structural flaws in current LLMs make this unlikely.
- ▪Investors may have engineered the LLM boom using persuasive narratives, similar to Uber’s strategy despite massive losses and no clear path to profitability.
- ▪The article compares the LLM investment surge to Uber’s earlier growth model, emphasizing wealth extraction over sustainable business development.
Opening excerpt (first ~120 words) tap to expand
Spring 2026 / Volume X, Number 1 February 20, 2026 Understanding the LLM Bubble By Hubert Horan The current debate on the existence of an “AI bubble” centers on a single question: is the current high level of investment into AI data centers a massive misallocation of capital or the key to future economic growth? The companies tightly linked to generative artificial intelligence (GenAI) drove 80 percent of the stock market’s growth across much of 2025.1 The equity value of these seven companies increased by $16 trillion in the last three years and now accounts for a third of the equity value of all listed U.S. companies. Even before potential trillion-dollar capital spending increases begin, data center investment accounts for about half of current U.S.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at American Affairs Journal.
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