Prediction markets. They're like an elaborate, worldwide bet. Shame they're not government-sanctioned; a world with ubiquitous prediction markets would be inter

Prediction markets. They're like an elaborate, worldwide bet. Shame they're not government-sanctioned; a world with ubiquitous prediction markets would be interesting indeed. http://en.wikipedia.org/wiki/Prediction_market http://en.wikipedia.org/wiki/Prediction_market