&gt; Except that most of Americans between 16-22 (the oldest FB audience) have quit.<p>That&#x27;s an extraordinary claim and requires extraordinary evidence. You don&#x27;t have any.<p>As someone who&#x27;s actually <i>in</i> that demographic I can tell you it&#x27;s patently false. Facebook continues to be the hub of social networking, particularly on college campuses. If you&#x27;re having an event of any sort, Facebook is the place you announce it. Messenger is becoming the dominant messaging platform for most people I know.<p>If you&#x27;re going to make extraordinarily bold claims, it&#x27;d be good to offer some actual evidence. Or at least put your money where your mouth is by taking a large short position.