I'm curious about how well it would work, since I would think that the incongruent motion of the text and the rest of the world would produce motion sickness. But I could be wrong.

I'm also horrified. I've come close to being trampled by herds of joggers (and even individual joggers) before because they aren't paying attention. It is at the point where I have to listen for their footsteps approaching from behind me in certain neighbourhoods at particular times of the day.