The second annual Pickard Memorial Lecture, by Hans Rosling, co-founder of the Gapminder Foundation and a frequent TED conference speaker. Sponsored by the Department of Statistics and in honor of David K. Pickard, a member in the Harvard Statistics Department from 1977 to 1985. Jon Chase/Harvard Staff PhotographerThe second annual Pickard Memorial Lecture, by Hans Rosling, co-founder of the Gapminder Foundation and a frequent TED conference speaker. Sponsored by the Department of Statistics and in honor of David K. Pickard, a member in the Harvard Statistics Department from 1977 to 1985. Jon Chase/Harvard Staff Photographer