" No two generations in history have experienced such a highlighted cognitive dissonance, because never has change occurred at so rapid a pace. Look at the rate of penetration—the amount of time it takes for a new technology to be adopted by fifty million people. Radio took thirty-eight years to reach that mark; the telephone took twenty years; and television took thirteen. More recently, the World Wide Web took four years, Facebook took 3.6, Twitter took three, and the iPad took only two. Google Plus, which nobody even finds useful, took only eighty-eight days to be adopted by fifty million. "

― Michael Harris , The End of Absence: Reclaiming What We've Lost in a World of Constant Connection