I was reading this interesting sci-fi book called “The Player of Games” and it takes place thousands of years into the future. It’s always interesting to see what another person’s vision of the future is like, and one thing that is in this future is droids which can carry out your every command. I can see how this is preferable to placing stress on the hand and wrist joints by constantly having to type or move a mouse.
The one thing that has always plagued input devices for the computer is the ergonomics of the device. Even the most carefully crafted device will eventually cause fatigue due to the same position it puts the hand in every time its used. It’s almost as if you need a device which can constantly vary its position to prevent this kind of stress.