Sitting in front of a screen doesn't completely block your vision. I think there will be a certain level of discomfort, no matter how lightweight the goggles, a

Sitting in front of a screen doesn't completely block your vision. I think there will be a certain level of discomfort, no matter how lightweight the goggles, at being completely blind to your surroundings. I have no idea if this will prevent mainstream acceptance of the technology, but I think it will have a serious effect. Maybe the next generation of this tech will find a way to preserve peripheral vision, and/or provide some pass-through motion detection, while still remaining immersive.