Musk posted about politics, race and the culture wars, even as he took SpaceX public.
SpaceX, Elon Musk’s rocket and artificial intelligence company, capped the biggest-ever initial public offering by rising 20 percent in its trading debut on Friday, turning the world’s richest man into the first trillionaire and setting the stage for fast-growing A.I. companies to reach the stock market in a once-in-a-lifetime bonanza. SpaceX shares opened trading at…
