Demography before and after 8 billion

 The Washington Post has an interactive graphic article that lets you put in your age and then learn some specific facts.  I was a bit surprised by much of it.  Here are a bunch of screenshots:

I was expecting more people of my age....

Again, way to make me feel old.

Great.  Somehow, the fact that a handful  of the currently most politically dysfunctional countries are on the path of big population increase doesn't fill me with confidence.

I will add a video to this later...

 

Update:  Here it is.  John Green giving a quick run down on historical demography: