Earlier quoted context omitted.
> having to crane your neck around to see what's going on sounds like a PITA This is a step too far in my opinion. You already have to "crane your neck around" to see what's going on in the real world, all around you, all the time . I'm also sure there are less physically demanding games/experiences for those interested. Pick your poison.
In the real world, you look with your eyes much more than you look with your head. As you're playing games or working, the only time you ever turn your head is when something external distracts you, and you can resolve it in a split second. If you're using VR and something external distracts you, you have to abandon whatever your doing and dismount the device.
i don't think physical movement will be a requirement of vr as a concept. you can sit and eat cheetos all day long if you want.
and in the future, i think we'll have instant-on instant-off see through LEDs so you can hit a button on the side and see through the headset into reality.