You're talking about a very particular kind of representative democracy framed by particular conditions. Among other problems, the conversations don't scale very well. If it all comes down to one day once every X years of voting between 5 candidates and 4 issues, I don't think that's a very good system. Granted, participation could shift from those adept in 'traditional' campaigning to on-line forms, but I think the participation would be higher. I am for a very radical change of democracy using modern computer networks, where delving into issues involves organizing information available to everyone, clicking on links and consulting individuals. I do agree some checks and balances are required, and some processes should be extended with multiple levels. But systems can evolve past their historical basis to something based more on positive beliefs of the benefits of networked individuals, that their capacity (for example, those involved on networking sites) should be expanded so we rely less on the charisma of elected officials and more on competent individuals in open connected networks creating accessible permanent records. I am very pro government but think it should be very efficient, very open, and very inclusive of the public it's meant to serve on a constant basis.