Who is Dean (k)yK from Cosmicomics and what is their importance?

Dean (k)yK appears in the story, How Much Shall We Bet? He bets with Qfwfq throughout the formation of the universe on upcoming events. As time goes on, Qfwfq begins winning more and more, as he logically follows the physics of events to their natural conclusions. Dean (k)yK is described as conservative and a poor loser.