Re: Meanwhile, back in the real world:
"The bulky size is a plausible enclosure for the sensors, screens and silicon required - MS aren't claiming the impossible by saying it'll fit into a pair of sunglasses. "
It does seem odd that they mostly all seem to think putting all the tech into the headset to make big, bulky, heavy and uncomfortable units is the target though. What;s wrong with putting all in a belt mounted box and just running leads up for video and sensors? Minimise what needs to go on the head.