"Let's say that today I wanna very subtly change the color of an accessory that I'm wearing when I enter or exist a certain social scenario"

This puts a smile on my face... but come on, there must be better uses. Surely touching the accessory is easier. Also, the lettuce stirring while scrolling seems like a problem that is most easily solved by speech recognition. It's not that I don't like the idea but if it is that hard to come up with a situation where it is the one and only, superior interface... Perhaps someone will think of it...