I don't think we know quite enough about the detail of Magic Leap's technology yet - there are some analysis articles based on their patents, but it's an incomp

I don't think we know quite enough about the detail of Magic Leap's technology yet - there are some analysis articles based on their patents, but it's an incomplete picture. However, the general concept of a "light field display" is worth knowing. Normal displays work by creating pixels that glow. Each pixel emits light in all directions. That passes through your eye if it is looking at the object, which focuses it back into one point on the retina. In a (pure imaginary) light field display, instead individual rays of light are produced, not pixels. The individual rays can be faked so even though emitted very near your eye, they are focused by your eye and your brain thinks they are further away. Possible advantages of this (off the top of my head based on reasoning from the physics and the way vision works and the way existing displays are used): - Can create objects at any distance - including infinity. Your brain (it's stereoscopy tricked) will believe they really are at that distance. - The viewer can change focus, and the objects will correctly blur and come in and out of focus. - An individual large object could have varying distance and focus across its form as in the real world. - Because of the improved stereo and focus, in an AR display especially, there will be less contrast between the projected objects and the real world. They will just seem "more real" in comparison to real objects. - Vision correction. In theory a light field display could project images that correct for any vision defects you have - dynamically. (In practice the talk of special lenses for glasses whereas in the OP article shows that Magic Leap isn't at a level it can do that yet) - Special effects. So of course you can then do other funky things - play with faking visual defects for special effects. Your character could appear to need glasses, and then get them as a powerup etc. Or you could make someone's vision blur when they're tired or about to die. Or have a boss which is always out of focus in an odd way. Of course Magic Leap won't be that good. It is only digital. It will be granular both in normal resolution and in effective depth of field resolution. But still... It really does sound like it has some of the above benefits.