AI chip leader Nvidia (NVDA -0.02%) has delivered remarkable performance for investors, with a split-adjusted gain of about 2,470% over the past five years as the AI revolution has kicked into high gear. As of this writing, Nvidia is the most valuable publicly traded company in the U.S. stock market, with a market cap of more than $3.7 trillion.Don't get me wrong. I don't think Nvidia is a bad stock to buy right now. But I do think that after the current wave of AI investment subsides, the days of exponenti ...