6 ms·
This talk by Hans Rosling may be what you are referring to. https://www.youtube.com/watch?v=dymPP9RhPjw https://www.youtube.com/watch?v=dymPP9RhPjw
by exch 11y ago
This talk by Hans Rosling may be what you are referring to.
https://www.youtube.com/watch?v=dymPP9RhPjw https://www.youtube.com/watch?v=dymPP9RhPjw