…ith Facebook, YouTube, Twitter, and countless pretenders (though I’m keeping my eye on Houseparty). Nothing compares to what happens when a group of kids connect on Snapchat. It literally becomes their social geography, and that fact will be widely recognized by the business community when Snap goes public. But almost hand in hand with that will come the Snapchat backlash, as scholars, alarmists, parents and school administrators speak out about the impact the app is having on the structure of society. Spectacles? By the end of 2017, those will seem quaint. Side note: There’ll be an amazing science f…