He is likely citing birth rates are less than death rates in most of the developed world. There is a bit of a lag effect in pop count because boomers and extens

He is likely citing birth rates are less than death rates in most of the developed world. There is a bit of a lag effect in pop count because boomers and extensions of end of life. Japan is at the forefront of this and has more elderly in diapers than children. Another aside that's Interesting is their societys professional landscape is very ageist against youth. I don't know anything about how immigration impacts things.