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Did Stanford just prototype the future of AR glasses?
(www.theverge.com)
This is a most excellent place for technology news and articles.
So they already "happened".
I think most people understand the difference between "existing" and "happening".
That was the whole point of the original comment.
You keep using that word. I do not think it means what you think it means.
Seems you used that word. I'm just responding to your comments.