I'm not arguing Musk's tweet wasn't ill advised, but this seems to say a lot about how fragile our system is if 140 poorly thought out characters can cause so much damage. What about the fiduciary duty of all those investors who changed their positions based on this information? If you are putting millions of dollars at risk based on a cryptic tweet, you are failing at your job as much as Musk failed at his, and you don't deserve to be protected by the SEC.