Imagine if our responses (and new threads) were presented in the spritz fashion...whoa, head spinning time!!!
Cool tech, when one has a lot of material to digest. But since most of us read for pleasure, I'd say we're doing alright with our existing methods.
One thing I DON'T do is move my head to follow the lines of material...just my eyes. I often see people in doctor's offices reading that way, wonder why they do that. EXTREMELY sore necks after "War and Peace"...