The issue focused on the question of how to keep and change the available computer systems. I also believe that the human side of the problem is not as important as the issue of how to allow the human to act in a way that is both designed to make the system more useful and "useful" in the long run. I also think that the important thing to think about is to make the system "useful" in the long run, and I don't think that is the end of the story. I