My main duty as the D’ni Historian is to keep track of what we know about D’ni history and to help research to find out more about D’ni history. Since we are designing the Myst games based on D’ni history, one of my duties is to throw up a red flag if the something in the game and something in D’ni history are in conflict. Sometimes, usually for gameplay or technological reasons, my flags are over-ruled, but we do attempt to keep the conflicts to a minimum.