China's success is back to bite it

China has always been a fascinating study for those interested in demographics and how populations can or can't be moulded by dictate from a central government.

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Back in the late 1970s and early 1980s, the country's communist rulers were worried that rapid population growth would hinder economic expansion and outstrip the country's natural resources... so they imposed the controversial "one child" policy, which limited most families to one child. This prevented 400 million births, by some estim