Shares of NVIDIA (NASDAQ: NVDA) recently tumbled after a double whammy of bad news. First, one of Uber's driverless vehicles, which was powered by NVIDIA's chips, hit and killed a pedestrian. Uber and NVIDIA both suspended their driverless tests after the accident.Many investors seemingly saw the news as an indicator that NVIDIA's entire automotive chip business, one of its pillars of growth, was falling apart.