hugh3, you are exactly right. I updated the original post as I was thinking through how this amazing physics experiment could be helpful, and it dawned on me, it wasn't.
I could just use my Canon to accomplish the same thing.
I think my brain was more caught up in the fun of walking through the thought than accomplishing something with it.
Even so, I think it would be fascinating to interact with a device that consisted of mirrors, even if was just to experience a delay of a millisecond (or whatever is the minimum amount of time to perceive a delay).
Exactly. I think it'd be incredibly cool to walk in front of a thin transparent wall with this property, run around to the other side and see yourself walk along it.
I wonder if you could information in this fashion.
I could just use my Canon to accomplish the same thing.
I think my brain was more caught up in the fun of walking through the thought than accomplishing something with it.