I was sad to hear that Hans Rosling died today. I appreciated his unique approach to analyzing and using research data (especially qualitative data). He produced animations that made complex statistics lively and meaningful. As the BBC noted:
Facts, Mr Rosling believed, could correct “global ignorance” about the reality of the world, which “has never been less bad”.
As his son, Ola Rosling, said on Twitter, Hans Rosling had a “dream of a fact-based worldview.” We have never needed it more. The “fact tank” he helped found, Gapminder, will carry on his dream and his work.