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Why is Facebook so addictive?

In the first episode Tim examines the impact of Facebook on our privacy. What does Facebook know about us? Why do they want to know that? How do they know that? And can it hurt, that data hunger? Tim tries to approach Facebook itself to find out what they know about him and who they share with. In addition, he investigates how Facebook collects all our data and whether or not Facebook is listening to people via the smartphone. Tim also talks to data researcher Michal Kosinski, the unofficial 'digger of privacy'. He knows better than anyone what can be learned from our online behavior.