Hans Rosling: The best stats you've ever seen

Charming talks for a boost on a bad day | Playlist Now playing All under the age of 16, brothers Jonny, Robbie and Tommy Mizzone are from New Jersey, a US state that's better known for the rock of Bruce Springsteen than the bluegrass of Earl Scruggs. Nonetheless, the siblings began performing bluegrass covers, as well as their own compositions, at a young age. Here, they play three dazzling songs in three different keys, passing the lead back and forth from fiddle to banjo to guitar. What are you revealing online? Much more than you think What can be guessed about you from your online behavior? Two computer privacy experts — economist Alessandro Acquisti and computer scientist Jennifer Golbeck — on how little we know about how much others know. The best indicator of high intelligence on Facebook is apparently liking a page for curly fries. I hear so much conflicting information about what I should and shouldn’t be posting online. Alessandro Acquisti: My personal view is that individual responsibility is important, but we are at a stage where it is not sufficient. Jennifer Golbeck: I agree with that. Take language analysis, a really powerful tool where we look at the kinds of words that you use — not even necessarily obvious things like curse words, but things like function words: how often you use “I” versus “we,” how often you use “the” versus “a,” these little words that are natural in the way that you develop language and inherent to your personality. What would a policy solution look like? AA: Indeed.