Comment by melling

Why not wish for eye tracking so we could simply look at something? Then a subtle Soli gesture to select.

https://atap.google.com/soli/

I always think of this blog where the person had to use their nose because their hands were in pain.

http://www.looknohands.me/

Discussion from 7 years ago:

https://news.ycombinator.com/item?id=8805053