It&#x27;s called augmented reality, and HoloLens is just one of them, GoogleLens is another. I played with several research prototypes some years ago. All devices had a too small POV (point of view) and&#x2F;or bad graphics. HoloLens suffer from a very small POV, see: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11195008" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=11195008</a>