I tend to use the trackpad even when I have a bluetooth mouse sitting on my desk. I also have a laptop that has no optical drive. If neither of these two things were true, I’d likely hope for a world where this foldable mouse concept were possible.
Designer Taewon Hwang came up with the clever concept of a disk:
That can be folded into a mouse.
As with most technological ideas, the biggest hurdle is usually the energy. There isn’t the battery technology necessary to power such a thin device. Since when did we let technological limitations
Image Source: Yanko Design