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Facebook's Cox Departure Marks End to Complicated News Feed Era

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Cox helped invent Facebook’s news feed. Bloomberg’s Sarah Frier reports.(Source: Bloomberg)

Facebook Inc. just lost its most senior product executive. His departure marks the end of an era for the news feed, the social network’s most iconic -- and often most fraught -- product.

Chris Cox, chief product officer at Facebook, worked at the social network for 13 years. He helped invent and develop the news feed, the main channel for personalized life updates for more than 2 billion people -- essentially the algorithm-based editor-in-chief of users’ digital lives. It’s probably no coincidence that Cox’s departure comes just days after Chief Executive Officer Mark Zuckerberg proclaimed that Facebook’s future will be focused on something entirely different: private messaging and small-group chats.