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Imagine dead people still talking and responding like they did when they were alive, imagine them updating their online journals and giving you advice on Skype long after their last rites. It may have seemed completely implausible a few years ago but is well within the realm of the possible now.
Facebook has brought its users the perfect holiday cheer. Over 200 million people have said thanks on Facebook using a video feature it introduced in November 2014, the website announced on Wednesday....