There has been an endless discussion on Nvidia (NVDA 4.89%) in the last few years. The maker of advanced computer chips powering the artificial intelligence (AI) revolution now sports a market capitalization of $3.48 trillion. That's correct, trillion with a T. Nvidia is now the world's largest company and shows no signs of slowing down. Revenue is up a whopping 782% in the last five years alone.But that doesn't make Nvidia an automatic buy for investors today. In fact, with the stock up so much and its for ...