I ask you, how many time have you clicked a button, a link, an image, clicked on anything that is supposed to do an action, but your left waiting for something to happened, you click again and again until finally something happens. Probably you did not have to click all those times, but because there was no instant feedback on your action, you just kept on clicking. This has happens to me and to more people than it should. Many big company like Amazon, Facebook, Google, and others have not given feedback the attention it deserves.
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