For at least two decades, former Amazon executive Dave Clark ended his work week the same way: a standing Friday date night with his wife, Leigh Anne. Over dinner, the Clarks would talk through the “peak and pit”…

SpaceX on Monday acquired xAI, the artificial intelligence startup that also owns the X social media platform, in a deal combining two companies owned by Elon Musk. Musk in a news release said that the combination would aim…