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Some studied showed that Facebook algorithms tended to polarize people by showing us informations related to what our friends or ourselves tend to see the most. Facebook exposed its users to what they like or what their friends like, assuming that Facebook friends can have similar interests. Thus, our newsfeed depends on the open-mindedness of our Facebook friends. Having only right  of left politically oriented friends, who like and comment political contents on Facebook highly conditions what our newsfeed will look like and thus informations that we will access to.