[amyjess]

Ah, thank you. I was thinking of commenting something similar, but I didn't have numbers.

The oddity of South Korea and Japan isn't that they aren't having kids; that's par for the course for a first-world nation. It's that they have no significant amount of immigration. If South Korea and Japan took in the same proportions of immigrants as North America and Europe, they would have the same population projections as us.