Adding visual walls could be super cool. Just section off parts of your field of view when you don't want to see something. It could be nice if I could wall off the front of the booth I am currently sitting in. Or block out my peripheral vision. Blur out everything that isn't my laptop screen (some people will call this silly and making yourself situationally vulnerable, but so do noise canceling headphones. I have the right to deprive as many of my senses as I want. Until our world is perpetually full of sensory delights I will be removing as many as necessary until morale improves.)
What if we start to use AR to remove objects entirely. Would be cool but what if you forget it's there and accidentally bump into it! Maybe a warning should be present? Or will we adapt? There could just be a proximity detection where it snaps back in to reality if you get close enough. I guess we came to adapt to not hearing sound.
See Layers and What is this?.