Worse than with Windows, your job is not now over. Now, you begin the task of scrubbing back and forth vertically, trying to force the labels to appear, hoping you won't go far enough out of range in the process to cause the bar to disappear on you. The corners and edges of the screen are predicted by Fitts's Law to be the most easily reached targets. The Dock hovers just above the bottom of the screen where it can safely avoid being in any way efficient. Dock objects have invisible holes in them Carefully reproducing a bug in the original Macintosh, the new architects have built the Dock in such a way that users cannot click on transparent areas.
Users go right to the middle of the object they want, click, and then wait for something to happen.
It will be a long wait because nothing is going to happen if they happen to have clicked in an area with background showing through. Ensuring confusion, these same engineers have coded the objects such that hovering over a transparent area does, in fact, show the label. The Dock usurped existing objects Both Tab Menus and the Applications Menu are being forced into the dock. Tab menus are formed by dragging a Finder folder to the bottom of the screen, where it turns into a multi-level hierarchical menu. Tab menus have problems, not the least of which is that, every few weeks, the Mac crashes in such a way that they all disappear and must individually be restored, sometimes several times.