Aliasing vr → vr_(disambiguation)
Link to alias

Reason:

also virtual_reality -> vr_(disambiguation).

virtual_reality could be used as tag for the actual content consumed in virtual reality e.g. cutaway of thing that the vr_headset wearer is currently consuming, but at least right now it's as messed up as vr tag and there's content where character is in augmented_reality and content where character is in tron like enviroment. Could use virtual_reality_content instead or similar?

Can mean:

• vr_headset
• Playing_videogame
• stereogram
• 360_image
• goggles
• fisheye_lens (might require some additional aliases e.g. 180_degree, wide_angle*)

Additionally:

• oculus_rift -> vr_headset
• htc_vive -> vr_headset
• playstation_vr -> vr_headset

Headsets do have some distinguishable features, especially Playstation one, so makes more sense to use vr_headset as umbrella tag for everything and additionally the specific brands if clear enough.