Stashed in: Teh Internets, @cdixon, Charts!, Demographics
From a Business Insider article I couldn't find.
Instead I found this from a Chris Dixon retweet.
There were 1.5 billion smartphones in the world in December 2013:
I wonder how many there are now.
Sochi Olympics 2014 Schedule and Results
Old Spock battles New Spock in the greatest car commercial ever
Five dimensional black hole could 'break' Einstein's theory of general relativity.
The Honor System - Esquire