Para conhecer melhor o estado da Humanidade, veja isto: Hans Rosling

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https://www.ted.com/speakers/hans_rosling

In Hans Rosling’s hands, data sings. Global trends in health and economics come to vivid life. And the big picture of global development—with some surprisingly good news—snaps into sharp focus.

The Magic Wash Machine

https://www.ted.com/talks/hans_rosling_and_the_magic_washing_machine#t-531937

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