Billionaire Elon Musk says that one of his tech companies--Tesla, will be moving its headquarters out of California, and to Austin, Texas, making good Musk's threat to pull out of Silicon Valley. Musk previously made threats to pull his companies out of California, citing pandemic restrictions. Musk also runs Hawthorne-based SpaceX, in the Los Angeles area. Musk has been spending much of his time in Texas living in a tiny prefab house owned by SpaceX in Boca Chica. It's unclear if Musk is planning a similar move for SpaceX.