No kidding - I was reading my phone in bed after using AVP for an hour or so: I felt like my phone screen was floating above the glass or something
Anybody remember the good old days of CRT displays, and getting their first Trinitron or other "flatter squarer tube" displays - and how the display looked "pincushion" shaped (but wasn't if you checked it with a ruler) until you'd got used to it? Hours spent looking at older CRTs with spherical-section screens had trained our brains to "correct" for the curvature, and - presented with an image that was truly flat (or cylinder-section for Trinitron) it took additional hours to learn to "un-correct" it.
Then there was the way you didn't notice the flicker on a 50/60Hz CRT until you's spent some time using a 70Hz or better one (my undoing was the Atari ST) after which it became unbearable...
The other weird one is the (widely documented) "soap opera effect" on higher-frame rate TVs: for the first few weeks of owning one, something in your brain is shouting "cheap" - probably because cheaper, shot-directly-on-video (at 50/60
fields per second) productions actually had smoother motion than "premium" shot-on-film (at 24-25
frames per second) productions. Some of this was maybe down to the new TVs "interpolating" 25/30fps material to "fake" higher frame rates looking slightly artificial, but it famously affected
The Hobbit which was actually shot at 48fps so it wasn't just that. Peoples brains had been trained that "better = worse".
So it remains to be seen whether this is a serious problem with AVP but it's not entirely surprising that our poor monkey brains are struggleing to keep up -
especially if you're going to flip between using a virtual computer screen in AVP and a real, similar-looking screen in meatspace.
Also, a stereoscopic image is not
true 3D - stereoscopy is just one of several tools your eyes/brain has for perceiving depth: you also have distance cues from focusing your eyes, how your eyeballs track together, parallax motion as your viewpoint moves plus your knowledge/expectations of the world in general. Stereoscopy alone doesn't just lack those other channels, but it can send conflicting data (e.g. stereoscopy says you're looking at a distant mountain, but your eyes are focussed at arms length...). AVP, with all of its position sensors could
potentially do parallax and eyeball tracking but it's still going to incomplete.
So, yeah, the problem with AVP is that Apple's, er, vision, seems to be that everybody is going to wear these goggles for long periods to use their AR/VR work tools, and some people's eyes/brains simply won't tolerate that.
The sun emits more IR into your eyes daily
Probably true, but be careful: first, IR covers a huge part of the EM spectrum, and different frequencies can have different effects. One would
hope that Apple have done their research in that regard...
Also, the sun emits a lot of energy as
visible light which deters you from staring at the sun or bright reflections on account of being, well,
visible. One danger with sources that
only emit IR and UV is that you can happily stare into them without realising the danger.