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In the beginning, when facebook opened, obviously everybody that was a member was still alive, a place full of vibrancy and colour. But at the rate they were growing it probably didn’t take very long before the first facebook member died. Given the fact that facebook initially was aimed at college students I figure that chances are that wasn’t a peaceful death of old age. More likely an accident or some terrible disease. As time passes the frequency with which people on facebook are dying will go up. The reason for that is that the average age of ‘facebookers’ that joined in the past will creep up, one day at the time, and that older people are joining facebook as well in ever larger numbers. Sooner or later facebook will reach a stage of equilibrium, just like the world population, where the number of people dying will balance (and will possibly even exceed for a while) the number of people joining. And in the very long term there will actually be more dead people on facebook then there are people living on facebook. I’d estimate that crossover to be around 50 years into the future, possibly a bit later. That steady state will be a cross between a place to meet the living and one to remember those that came before, and in the very long term the living will only be a very small fraction of the people on facebook that are dead! I wonder at which point the atmosphere on facebook will change, from photo sharing website to digital graveyard, a place where we come to worship our ancestors. To combat some of these ‘chilling effects’ (to put it mildly) Facebook has a procedure they call memoralization, this will limit the access to facebook pages to ‘confirmed friends’. Eventually those will pass away too and the moment when facebook’s last friend-of-a-friend passes away would be the moment the profile has finally lost value for facebook. So presumably, that’s the moment they’ll finally remove your browsing history, and that silly photo of you passed out drunk after the party. But that’s assuming that people actually report you to be dead. Another way to combat this is to set a practical limit to the age that facebookers can have, say 150 years. That way even if all your ‘friends’ forget to report that you kicked the bucket you will still be cleaned up by the digital grim reaper.

http://www.jacquesmattheij.com/dead...-term-facebook/