On Wednesday, October 29, as the U.S. stock market opened, Nvidia (NVDA.O) crossed the $5 trillion market capitalization threshold, marking a historic milestone as the first company to do so and further cementing its pivotal role in the worldwide AI boom. Brian Colello, a senior equity analyst at Morningstar, pointed out that although tech giants might look for alternative supply sources or develop in-house solutions over the long haul to lessen their dependence on Nvidia's AI chips, these initiatives will, at most, marginally diminish—but not entirely displace—Nvidia's supremacy in the AI field. The recent upswing in Nvidia's stock price is a testament to investor faith in continued, substantial investment in AI. However, some contend that its valuation might already be inflated. Matthew Tuttle, CEO of Tuttle Capital Management, warned that the current AI expansion hinges on a small number of dominant companies mutually financing capacity growth. This system could crumble if investors start demanding cash flow returns rather than continuing to fund capacity expansion.