Big-data selfie analysis

*That’s pretty interesting. Except for the unexamined assumption that people smile in selfies because they are happy. Americans grin incessantly even when on the point of suicide, while Muscovites just don’t smile much even if they’ve just won a lottery.

http://www.fastcodesign.com/3026620/russians-are-miserable-and-brazilians-love-to-smile-what-selfies-reveal-about-cultural-stere