User blog comment:Eastward Expansion/America and China (Book Review part 2)/@comment-1650675-20100730132225

Yea. Another thing that Friedman didn't mention is that China also has a rapidly aging population (and not just because of the 1 child law). It's a bit like Japan's situation. In most cultures, men are typically favored more than women. As you can only have one child, most would want to have males. Not only would you get a rapidly declining birthrate, but a good majority of those born would be males, further decreasing the population.