Adding to your fears for the future of mankind: MIT researchers have built a tool that estimates that, on average, Kim Kardashian can expect to be retweeted twice as often as President Obama. The researchers came up with what they call the "Twouija: Retweet Oracle" to predict how often a person will be retweeted, Vanity Fair reports. It predicts 600 retweets for Kardashian in the 50 minutes after any tweet, vs. just over 300 for Obama. Smoking them all? The Rock, who notches 800. A few others: Diddy would likely get about 80; for Ann Coulter, 95.