It is reported that China's birth rate has fallen below its replenishment level and also that its elderly are living longer. This means that there will be fewer workers supporting the retired, and this is a disaster.
It is the same disaster that has been going on in the industrialised nations for decades and their answer has been the Ponzi scheme of importing younger workers from anywhere and everywhere. Why is it a Ponzi scheme? Well that is because those younger people will one day become old and also need looking after. Unless some way is found to send them back the overall population will continue to grow and grow to unsustainable levels. The UK is not far off that level and many think that it has already been reached.
This is a global problem that will eventually make everyone poorer as resources are spread out thinner and thinner. This is why economists and capitalist are always banging on about growth - eternal growth. All this does is trash the atmosphere and the physical environment and will be the death knell for billions of us, including economists and capitalists.
We have to change, and soon, because there is no escape pod.