A common maxim for designing a man-machine interface is that it is better to change th machine than to try to change the human to accomodate the machine. Are there machines (or systems) that you use in your daily life that have room for improvement? Are the current generations of Windows PC and Apple Mac as usable as they might be? If not, what improvements can you suggest? Is the world Wide Web as usable as it might be? If not, what improvements can you suggest? Are we just beginning to see some breakthroughs in usability, or have most of the big improvements already been made?