Comment Comment by exch https://www.youtube.com/watch?v=dymPP9RhPjwA talk by Hans Rosling[1] on the subject.[1]: https://en.wikipedia.org/wiki/Hans_Rosling parent exch 11 years ago
A talk by Hans Rosling[1] on the subject.
[1]: https://en.wikipedia.org/wiki/Hans_Rosling