tl;dr Because that way they don't need to hurt their necks looking up at screens.
This is a pretty cool article about a pretty cool phenomena.
It's an example of technology taking an unexpected path: Apple tried to make a VR device more powerful than the competition and still cheap enough for early adopters, and in the process they got something that's workable as a medical device and cheaper than most devices hospitals usually buy.
This is a pretty cool article about a pretty cool phenomena.
It's an example of technology taking an unexpected path: Apple tried to make a VR device more powerful than the competition and still cheap enough for early adopters, and in the process they got something that's workable as a medical device and cheaper than most devices hospitals usually buy.