Bettors simply aggregated the opinions of the pundits, the statisticians and media, and their sheer number averaged it out. Without access to the media, the bet

Bettors simply aggregated the opinions of the pundits, the statisticians and media, and their sheer number averaged it out. Without access to the media, the bettors would not have enough information to be as accurate. What the markets are are just an averaging of more informed opinions - look what happened when Sarah Palin got picked - the media hyped that up, and the bettors went with it.