Oh I read your post, its against HN guidelines to assume and express someone else has not read your post or the content.
If you read the post of your GP (and that GP as well) you'll see they're casually mixing up AR and VR. You do the same, and I called you all out on the difference between the two. There's no need to feel offended about that.
You say you haven't had an opportunity to try AR, and mention Google Glass. The thing is, Google Glass is just one example of AR (a very known one) and also a very multi-functional one. The usability I had in mind is more subtle, more specific.
Examples: Layar has been out for ages (it adds AR on your smartphone screen from camera input e.g. adding complimentary digital info to a paper magazine or food you bought), if you have multiple smartphone cameras you use it, LIDAR uses it, Google Maps ecosystem as well (Street View for example). AI in general can use it. There's all kind of usages of AR such as this traffic light [1]. Not even mentioning about the experiment on how biking lanes are being lit up due to solar energy in the evening/night. Google Glass could've potentially done that all, but there's no reason that cannot exist in the future. It was just the wrong company to come first with the product. Google was also too early with it, just like Apple Newton was too early and GM was too early with the EV.
My first time using VR was on vacation in Spain as a child, using those red/green glasses we were watching a dinosaur movie. It was rather primitive, but immersive. I'm not anti; I just see it rather limited. I've read enough reviews about VR glasses and read reviews of VR games -including realistic screenshots- to know that the quality isn't there yet.
Long-term, VR will make more impact, but that's because it is so different whereas AR is rather complimentary. On the short term, AR is going to be more widespread and useful. I mean, I'd love a HUD on my windscreen telling me I am speeding. Like, of course.
[1] https://dutchreview.com/news/dutch/smart-crossing-dutch-inve...