If past trends continue, the world’s gross domestic product will be about twice as big by 2040 as it is today. That’s the sort of growth rate that translates to 30-fold growth over a century, or by a factor of a thousand over two centuries.
如果過去的趨勢繼續下去,到2040年,全球各國國內生產總值(GDP)總和將達到現在的兩倍左右。這種增速意味著,100年內全球經濟增長30倍,200年內增長1000倍。
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