Earlier this week, I watched this TED talk by Hans Rosling. During this talk, Rosling asks three questions:
1) Has the number of deaths in the last century doubled, remained the same or been halved?
2) How many years in school has the average woman spent in school (given that men spend 8 years on an average)?
3) Has the number of people living in extreme poverty doubled, remained the same or been halved?
The answer ….