Fantasy leagues are nothing new, but a new variant is making waves by offering a fresh start with each sunrise. Working off a quirk in the UIGEA that permits fantasy sports, the daily fantasy sites can operate as long as they set the number of entrants and the “prize” before people start entering. But can any game that requires its players to win 60% of its games before they show a profit ever catch on with a critical mass of sports fans? Read more.