One graph at the end of the article shows the population growth per age group. According to that, the number of children in 2060 will be the same as today (1.8 billion). But the number of people that are 70+ will grow form 0.3 to 1.5 billion. I was not aware of that. This impresses me a lot.

I see this strong trend for the first time. I wonder what it will change in the society and economy.