Earlier quoted context omitted.
Luckily growth mostly slowed and we are just seeing the effect of longer lifes. Talk by Hans Rosling worth watching: https://www.ted.com/talks/hans_rosling_global_population_gro...
Sorry for the off topic reply, but I saw your post "Ask HN: Variable naming guide of matching length?" when looking for the same thing and couldn't find a way to contact you on your profile; is this what you were looking for? https://news.ycombinator.com/item?id=26359214
Thank you! That was very observant of you and exactely the thing I was looking for.