File this under "highly specified things you never knew you needed." Because one day, you may be at an outdoor cafe using your laptop, because for some reason their only seats are outdoors, and it's really cold, and you're working on something sensitive or maybe you just want to watch porn, and you're in a public place but not so public that some dumbass is goona come sock you in the head when he sees you have no peripheral vision whatsoever...
Yep. That's when you need this thing. It's like a cozier David Croneberg concept - his would probably be made of intestines and pensises, but this is one you can knit yourself. Indeed, the Compubody is something its creator is happy to comp you, buddy.
h/t Eseel Borlassa