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The most compelling thing about Battlestar Galactica's Cylons is that some don't know they are biomechanical creations, not human beings. That makes them the perfect metaphor for sweetly unbearable videoblogger Robert Scoble, says TV by the Numbers. Scoble, a microcelebrity in the Silicon Valley for his hyperactive social networking, subscribes to an inhuman number of Twitter users — 19,684, to be precise. The obvious conclusion: He's gathering data about humanity in preparation for some nefarious scheme beyond our understanding. We have met our overlords, and they are armed with videocameras. (Photomontage by Richard Blakeley)