I'm sure about that. LANL built the CAVE in 1997, which not only added waldoes and two more surfaces to your "reality cube" it was also driven by a legit supercomputer and paid for by DOD money. Nobody cares. I don't think they even use it any more. I found out about it because my parents were involved in the building it was in; neither one of them knew of anyone who had any research for it, but the care and feeding of it was exorbitantly expensive. You have discovered, once again, that 3d immersion is a powerful gimmick. Spend a week with it and you will discover that it is of little utility. We perceive "depth" in ways that don't lend themselves to googles, and no matter how many times researchers spend a shitton on displays, that fact won't change.