Nvidia’s impressive $57 billion revenue in Q3 2025, up 62% year-over-year, has quieted many of the more lurid “AI bubble” warnings. But while Nvidia is convinced that the AI boom is only just accelerating, other corners of the tech world keep reminding us that quieting the noise doesn’t mean there’s nothing to worry about.
A Wall of Demand, Not a Bubble
On paper, Nvidia’s performance is nothing short of spectacular. According to TechCrunch, the company’s data centre business alone pulled in $51.2 billion, driven by surging demand for powerful AI models and large-scale compute infrastructure. CEO Jensen Huang called it “a virtuous cycle of AI,” pointing to a global build-out of GPU farms, sovereign AI “factories,” and AI-native enterprises. With a forecast of $65 billion in Q4, Nvidia argues the fundamentals are strong, emphasising that it’s not just speculation that is driving its meteoric growth.
In other words, the company doesn’t see itself riding a frothy wave but supplying a foundational necessity in a rapidly digitising world.
Yet, Nvidia’s strength doesn’t erase broader concerns. In Australia, for example, the S&P/ASX 200 index is already rattled. After hitting a record high in October, the index quickly dropped about 7%, as “stretched valuations” of tech stocks (among other factors) combined to shake investor confidence. Tech names (including AI-focused firms) have been especially volatile, leaving analysts to worry that while enthusiasm for AI persists, some of the rally feels driven more by speculative fervour than by fundamentals.
Even the Giants Warn of a Correction
Perhaps the most sobering perspective comes from Google’s CEO, Sundar Pichai. In a BBC interview, Pichai admitted that while we’re in an “extraordinary moment” for AI, he detects worrying “elements of irrationality.” He went on to issue a blunt caution that no company is immune if the bubble were to burst, not even Google itself.
That admission carries weight. If one of the largest, most cash-rich players in AI warns of a potential unwind, we would be foolish to ignore it—even as Nvidia’s growth dazzles.
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