TEXTDATA:An important principle of design is to always give feedback so the person knows that their action has been acknowledged, has been heard, that something is happening. When you turn a light switch, you expect a╩light to come on immediately. With a computer sometimes that can╒t happen, it takes a while to get the information, so . . . there╒s our friendly watch icon. It tells you that, yes, we╒re working on it. Wait, have patience. Feedback. A good design principle.