This TEDtalk by Hans Rosling first debuted in 2006, but the points he makes about data, information, and knowledge are priceless.
As you can see from this presentation, the ability to visually display data allows for in-depth contextualization, and the subsequent formation of new knowledge. Although the knowledge Dr. Rosling presents does not reach the threshold of actionable knowledge, it is easy to see how one could ask the right questions from a global health perspective to create actionable knowledge from the data available using his data visualization teachniques.
To further explore the new knowledge Dr. Rosling is creating, I highly recommend viewing his other TEDtalks. You can see his full bio and links to additional presentations here.
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