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For the first time in history, more than half the world is middle-class
- tokenadult 18y agoPreviously submitted: http://news.ycombinator.com/item?id=482717 http://news.ycombinator.com/item?id=482717 It's unfortunate that The Economist, a source of many good articles, has those articles living under so many different URLs that duplicate submissions to HN are very likely, even if the submitters take care to check for duplicates.