Tell me the answer to the question of the fallacy in the China article and then I'll tell you what mine is, lol.
The fallacy in the article in #msg-74753896, IMO, is that China’s fertility rate must permanently remain at a very low level even if the government’s 1-child policy (which has numerous loopholes) is formally rescinded. From the same article:
Because very low fertility can become self-reinforcing, with children of one-child families wanting only one child themselves, China now probably faces a long period of ultra-low fertility, regardless of what happens to its one-child policy.
This sounds like hand-waving by someone desperately trying to make a point without support from any credible data. Moreover, since articles in The Economist are not bylined, readers can’t even ascertain who came up with this bizarre notion.