He is the crazy genius behind Gapminder. His new TED talk is amazing. 19 minutes that will make you fell more optimistic. Do not loose the last minute!
"My neighbor knows 200 types of wine, I know just 2. But I know 200 types of countries, while he knows just "Developed" and "Underdeveloped"."
BTW, if the subject is Gapminder you should take a look at the Dollar Street.