What is virtual reality? On a technical level, it is a headset-enabled system using images and sounds to make the user feel as if they are in another place altogether. But in terms of the content and essence of virtual reality — well, that may depend on where you are. In the U.S., for instance, virtual reality (VR) has its deep roots as a form of military training technology. Later it took on a “techno-utopian” air when it started getting more attention in the 1980s and 1990s, as MIT Professor…