Facebook is based on the premise that the user will do all of the work and create all of the content. Once the user base is large enough, the company will generate revenue by selling user data and by advertising to the user base. This model is broken. People are gaining awareness that FB requires too much sharing of personal information and returns too little in return. I can't recall the last time I saw someone under 25 join FB. What was revolutionary is now mundane and Zuck is standing on the shore while the ship sails away.