“If you were to assign a caloric value to every food mentioned in every tweet by the citizens of the United States and a calories-burned value to every activity, and then totaled them up, you would find that Colorado tweets the best caloric ratio in the country and Mississippi the worst.” It turns out scientists can learn a lot about us just by analyzing our tweets. (It will be interesting to see what happens when they try to analyze the ones from Washington DC.) From Outside: Inside the Lab That’s Quantifying Happiness.