>Many people had a hard time moving and clicking at the same time, and “double-clicking” was a skill one had to learn There is never any reason to bother worry

>Many people had a hard time moving and clicking at the same time, and “double-clicking” was a skill one had to learn There is never any reason to bother worrying about double clicking. It is just a shortcut to select the default interaction option, which is equally available by selecting the interaction option (usually the right mouse button) and choosing it from there. In fact the great part of the mouse is how much discovery it enables: you can move the mouse over any element of the screen and see how you can interact with it based on which icon is shown. If you don't know what you can do with a given item, you can right click it and get a menu list. Apple famousely only had one mouse button, and options where shown when you clicked the option button. If Windows had something similar, do you think people would have realised it could also be used when dragging? I still remember when the group I was in realized you could right-drag things and get a useful menu when you did. I can't remember whether we were CS students at the time or had graduated.