Concerns about an AI bubble could be misplaced.Concerns about an artificial intelligence (AI) bubble came to a head on Nov. 19 after Nvidia (NVDA +2.05%) CEO Jensen Huang addressed them directly on his company's earnings call.After Nvidia smashed analyst estimates in its third-quarter earnings report, Huang told investors that there was still a long runway of growth for the company.Once again, he reminded listeners that a transition from CPU general-purpose computing to GPU accelerated computing is underway ...