This presentation is from Prof. Hans Rosling where he comprehensively debunks the myth of there being two worlds on this planet – a “developed world” and “the Third World”. It’s a most informative presentation! He uses the most amazing graphical techniques to do it, and delivers the content in a charismatic, engaging style. As far as presentational public speaking goes, this is the gold standard.
Many thanks to my friend Brendan for the link.