I think of that more of an eternal Summer of 2007 since that's when the iPhone came out, and anecdotally the shift in society was well underway by 2010. I'm not sure we could use this to explain things are necessarily that different today than in 2014.

I am tempted to think the amount I have used social media and my smartphone has actually declined since 2014, and in the case of facebook I suppose it considerably has, but I'm not sure I haven't just replaced it with other compulsive clicks. So in that sense I must agree things have probably escalated a bit, but I can't point to a single event over the past decade to create a turning point.