Social Media: Past, Present, Future

The original writing on the wall. For a great imagining see the intro to HBO's Rome.

The Inspiration

I just finished "Writing on Wall: Social Media, The First 2000 Years" by Tom Standage, a rare example of a book both ambitious in scope and intended for a popular audience that didn't turn out completely horrible. 

Standage superbly stitches together a string of anecdotes to summarize the history of "social media," which he wisely doesn't define precisely but that I will define as: 
Social Media (n): Written or spoken commentary intended for a general audience, distinct from storytelling and from peer-to-peer communication including letters, phone calls, and snapchats.