Politics are in disarray. More people are "connected" online but more people than ever feel isolated in some way and mental health issues are on the rise. Highlight reels of your friends living a seemingly amazing life leave people feeling like they've underperformed. Shoddy advertising practices and questionable news are splattered around the platform. Obviously as a communication platform it works, but so what? There are a million ways to stay in touch with people.
I applaud Facebook, and Mark, for what they have achieved in terms of raw numbers and the ubiquity of the platform. But what's the point of having 2 billion users if ultimately this platform doesn't genuinely improve society for the better as a result?