Stupid (?) Triple Screen Idea

[LeMansAid]

While engaging in the sport of belittling hapless souls elsewhere, I had a thought. Would it be possible, and would it make any sense to develop an option in sims to use triple screen, but with only one screen width showing full resolution at any given moment? The idea would be that in conjunction with headtracking, the properly detailed area would follow one's view of the screen(s). The remaining peripheral could be filled with something with as little processing demand as possible. Some vague indication of shadow and movement would suffice.

Obviously the sought after upside would be a significant drop in processing required.

Now, I am quite sure that this idea must be stupid, but please enlighten as to why.

 

[insert coin]

What if you keep your head pointed straight ahead, but look to the left with your eyes? You would see a blurry image...?