> Overlapping windows is what makes mouse based interaction fast. How does the overlappingness make anything faster? If anything it becomes slower, because you

> Overlapping windows is what makes mouse based interaction fast. How does the overlappingness make anything faster? If anything it becomes slower, because you need to move windows out of the way, or select them before you can get to the covered part. > Not everybody wants to use keyboard all the time In no way necessary. I don't think the WWDC splitscreen demo used keyboard shortcuts at all? > it is useful to have more than two windows on screen at a time. Having more than one window on the screen is also not helped by the windows overlapping. I regularly have 2-4 windows side-by-side on the same screen at once without overlapping, and multiple such screens and fullscreen windows on virtual desktops.