I've got a good friend who completely lacks muscle control, and cannot move anything but breath, and maybe fingers slightly, just enough to type via screen.

Brilliant, of course. Anyone who must sit in a chair all day will end up thinking quite a lot.

But still, it is a brutal life for this person.

I hope that this can be used to help people like this, because they are worth helping. People, no matter their circumstances, can do glorious things if given a chance.