Tesla CEO Elon Musk has insisted investors think of his electric automaker as a robotics and autonomous vehicle company now. Hes targeted a $20 trillion valuation—nearly four times the value of market leader Nvidia —on that premise. But his Tesla team was in Sparks, Nevada, on Thursday to focus on, well, an electric vehicle: the long awaited Tesla Semi . The Semi concept first rolled onto a Tesla event stage in late 2017 . Nearly a decade later, Tesla officially launched high volume production...
