A friend of mine wrote a witty Facebook status update that referenced the passing of Farrah Fawcett and Michael Jackson on the same day. "First the 70s died. Then the 80s. Better watch your back, Spice Girls."I chuckled at the same time that I realized that in a matter of seconds, dozens of my "friends" were posting about the simultaneous loss of Farrah and Michael. ("We never did see them in the same room together, did we? Hmmm.")But what I was mostly struck by was not people's clev