because the modern technology is ahead of social revolution in e

来源: kabab 于 2013-07-02 21:14:54 [] [旧帖] [给我悄悄话] 阅读数 : (362 bytes)

The eastern countries adopted modern technology first. Is the technology that provide enough food and medicine to support larger population. The social revolution reduces the birth rate. It's happened in the same time with tech revolution, and 100 years later in east. In some area the social revolution is yet happened, you still see the fast population growth.

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