When you consider for just a moment EVERYBODY on the Internet in
   a single moment... and the *different* activities they're
   doing... your brain can go "pop".

   This is such a tiny corner of the 'net yet it feels like its
   everything. There's people who are online at present who don't
   use FB. Where are they? Websites? Within games? How many
   multiplayer games? Within Apps on phones? all messages passing
   back and forth in millisecond time... zoom zoom, thwang and it's
   amazing.