separate discussion format/protocol from visualization, then anyone can implement their own discussion navigator/visualizer... the most obvious feature (and a

separate discussion format/protocol from visualization, then anyone can implement their own discussion navigator/visualizer... the most obvious feature (and a more objective metric for the productivity of the scoring algorithms) would be a button or color that highlights the claim, which if swayed to garner more or less support would most influence the topmost/root claim. If you don't build it sommeone else will. The most popular and desirable interface is the one that helps the user sway the rest.