I like what you have put together here, but I am concerned that you are blurring the difference between AR, VR, and AI. Your article is about VR (Virtual Reality), but you are making a few references to AR (Augmented Reality) and calling it VR. For example, Snapchat uses AR (Augmented Reality) to add fun filters to your face (not VR.)
Working in the AR/VR space, I see a lot of confusion in the terms and there need to be articles written that help people understand the difference. Just in the VR space, there are new advances in VR that have changed the space significantly. There are systems out now that are fully self-contained (no computer needed) that are full 6 degree of freedom (DoF) systems with 6 DoF controllers. This allows you to have virtually an unlimited sized play space and freedom to move around naturally…for under $400!