The late rockstar statistician Hans Rosling, who wrote the book Factfulness, inspired the Herald's Keith Ng to become a data journalist. He talks to his daughter-in-law and co-author, Ana Rosling Ronnlund.

"Are you smarter than a chimpanzee?" was a question frequently asked by professor of international health and rockstar statistician Hans Rosling.

Just as frequently, the answer was "no".

Over his career, Rosling sought to up-end our assumptions about the world by showing that chimpanzees choosing answers at random could answer quizzes about global statistics better than students, academics, even world leaders at the World Economic Forum. His last book,