“Next year, the world’s advanced economies will reach a critical milestone. For the first time since 1950, their combined working-age population will decline, according to United Nations projections, and by 2050 it will shrink 5%.” In other words, it turns out that the big problem in the world isn’t that there are too many people, but rather that there are too few (Thanksgiving dinners excepted). The WSJ’s Greg Ip provides an interactive look at how demographics rule the global economy.

+ The above piece is part of an interesting WSJ series that looks at how we will live, age, and work in 2050: Our Demographic Destiny. (I predict that the biggest selling album of that year will be Adele’s 60.)