You may have seen and may have even been wowed by the most recent demonstration of HoloLens last week. But as awesome and spectacular Microsoft's take on augmented or mixed reality may be, like all of its kind, it is still primarily a solitary activity that only the wearer can experience fully. Everyone else, in the end, is simply a spectator. Microsoft, however, might not content with simply accepting that restriction. Researchers at the lab of Jarod Lanier, a VR and AR pioneer in th 80s, are working on what could be the world's first multi-person mixed reality system.