The key question is how fast is China aging? Every western society is aging, so?
Rapidly.
All developed societies are aging, including the Western society. However the reduction in their TFR is gradual, while for China it's rapid because of the OCP which led to an unnatural population pyramid.
You need to stop correlating age with productivity.
The fact is most economist does.
And it's not only about the productivity, it's the society's ability to support the elderly in healthcare and social security along with a decreasing labor force. Taxes have to go up.
East Asia is aging but it is not going extinct, understand, there will be immigration from other fairer skinned nations, hell even South Americans are more acceptable than Indians.
Of course, East Asia is not going to extinct lmao.
As I said, immigration isn't feasible in China due to the sheer scale. Especially if you only want people from fairer skinned nations which the pool is shrinking too.
Do you consider Southeast Asia as one of the 'fairer-skinned'?
Fertility rates can be increased once you give better socio-economic conditions for your population. Women actually don't mind having 2-3 kids if there are enough support.
If look at the statistics, 2 kids is actually the most common in Singapore and Japan among married couples; around 40% in Singapore. 3 kids is also surprisingly common at around 20%, as common as 1 kid.
So what's the caveat here? 30% of our women are single and not married. That significantly pulls down our
total fertility rate, which include non-married women. Our married females actually have a average of 2.1 children.
https://data.gov.sg/dataset/average...group-of-resident-ever-married-females-annual
Here's an extract from an article in China.
由于总有部分人不婚不育,或只愿生育一两个孩子,少数家庭生育特别多孩子对维持民族繁衍至关重要。在一个正常社会中,不同家庭的生育意愿千差万别。假定意愿孩子数呈如下的分布:6、3、2、2、1、1、0,且所有家庭都能如愿,那一共7个家庭将生育15个孩子,生育率为2.14,勉强接近更替水平。而在这15个孩子中,来自三孩或六孩家庭的有9个,占总数的2/3;来自两孩家庭的孩子只有4个;而独生子女只有2个,不到总数的1/7。这也意味着,当来自三孩和三孩以上家庭的孩子非常普遍时,生育率才刚处于更替水平。
这也说明,全面二孩政策远远不够。在该政策下,上述家庭的生育数量将分别变成2、2、2、2、1、1、0,即7个家庭总共生育10个孩子,生育率仅为1.43。即当人们感觉二孩家庭孩子非常普遍时,生育率已经远低于更替水平了。
http://opinion.caixin.com/2016-10-31/101002084.html
In Singapore, at least 3 in 10 woman have '0' children because they are unmarried. That explains the low TFR.
How is a reduced population equivalent to a demographic time bomb?
A reduced population isn't the crux of the problem, but the aging of the population is.