Once I saw a father who was separated from his kids by an ocean get down on the floor with them and draw together in VR, I realized that basic human needs are going to be met by VR technology eventually. The removal of physical proximity as a pre-requisite for social presence is about as disruptive development as they come. It’s not 3D TV, and it’s not about tech: it is about the human experience of being together when physically apart. This is why Facebook is repositioning the whole company behind it. Zuck has understood this for a long time.