Facebook: It's in the news. Elon Musk, founder of SpaceX, Tesla ... he seems to have other things to worry about:

Musk did not specifically advocate deleting Facebook, but he does seem to have moved past it. The tweet was responding to WhatsApp founder Brian Acton, who earlier this week told people to delete Facebook. In a follow-up tweet, Musk said he would delete the SpaceX Facebook page (update: he deleted it.)