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Published: 2026-09-02 • Permanent link

Fears of an impending market correction are mounting in the tech industry, with EY's latest forecast suggesting that artificial intelligence capital expenditure will far surpass the cost of building railways in both the US and the UK. The global accounting firm predicts that AI spending will reach $1.4 trillion by 2025, dwarfing the estimated cost of building 45,000 miles of new railway lines. This staggering figure has sent shockwaves through the industry, with many investors and analysts scrambling to reassess their bets on the sector.

Rising borrowing costs have also added to the sense of unease, with the UK's government facing increased pressure to raise taxes to fund its growing defence spending. Resolution Foundation estimates that the government's plans to increase defence spending by 10% annually will require significant tax rises, which could have a knock-on effect on consumer spending and economic growth. As a result, investors are becoming increasingly cautious, with many opting to diversify their portfolios and reduce their exposure to the tech sector.

Industry insiders point to the rapid growth of AI as a major driver of this trend, with many companies investing heavily in the technology in a bid to stay ahead of the curve. However, experts caution that this growth may not be sustainable in the long term, and that the sector may be due for a correction. Since last quarter, there have been numerous high-profile failures in the AI space, including the collapse of several major startups, which has raised concerns about the sector's ability to deliver on its promises.

As the market continues to grapple with the implications of EY's forecast, investors will be watching closely for any signs of weakness in the tech sector. With the UK's general election just around the corner, there is also a growing sense that the government's plans for defence spending and tax rises may be influenced by the sector's performance. What will be the impact on the tech sector if the government does indeed raise taxes to fund its plans, and how will this affect investors and consumers alike?