From the article: "The main theme in the Spanish Golden Age playwright Pedro Calderón de la Barca’s La Vida es Sueño (Life is a Dream) from 1635 is the contrast between subjective and objective perceptions of reality."

Huh? Is this AI slop?

The basic problems with VR are well known. First, the headgear is too bulky. Carmack, who headed Oculus for a while, says that it won't get traction until the headgear is down to swim-goggles size, and won't go mainstream until it's down to eyeglass size.[1] "AR glasses", with just an overlay, achieve that, but it's not a full virtual environment.

Second, a sizable fraction of the population experiences some nausea, and a smaller fraction will barf.[2] That's worse than roller coasters. When visual and vestibular data disagree, the brain doesn't like it. The most successful VR games, such as Beat Saber, keep them locked together, but then you're stuck in one spot. There's a really good discussion of this by Phia, a VR influencer who started using VR as a teenager and spends a lot of time in VR.[3] She has practical advice on tuning VR systems to minimize nausea (interocular distance matters!) and how to introduce new people to VR (it takes repeated exposures of increasing length.)

VR Chat continues to grow, driven by young people who worked through the problems. VR Chat used to prevent free movement - you had to teleport from one seat to another. But experienced users wanted more freedom, and VR chat now allows it if you opt in. Really good users can do gymnastics with full body tracking while in VR.

It's not just put on the goggles and have fun. You have to acclimate. Learn the gestures that drive the system. Practice. If you go for full body and face tracking, your avatar has to be calibrated to match your joint lengths and you have to strap on sensors. (Which are now good, small, and wireless.) You need a safe open space where you can move, where there are no dangerous objects nearby, and the VR system knows the real world safe boundaries. VR is a sport, and takes the preparation of a sport.

So it works, but is not mass-market.

[1] https://next.reality.news/news/oculus-cto-john-carmack-outli...

[2] https://www.pcgamer.com/vr-still-makes-40-70-of-players-want...

[3] https://www.youtube.com/watch?v=ixdNKc53VZQ

VR Is Not Dead