2. Speaking of Tesla... On Monday, the Tesla CEO tweeted that he had deleted his Twitter account, but soon resumed sharing bumblebee memes and retweeting Tesla news. It seems Musk is still addicted to social media. And his tweet about deleting his Twitter account? Gone. Still, investors seem hopeful that Tesla's controversial CEO might just start acting the part. Musk's Twitter trolling has caused a lot of stress for investors and regulators alike.