Way off-topic, but I can't resist:
I just look at history in technology, it’s a question of when… but you’re entitled to your opinion just as we all are
I can accept that there are some physical limitations to the universe from which technology is not exempt, and it's possible that AR may never get to the point where it "needs" to be -- normal-looking glasses with transparent embedded screens (or projection) and eye tracking.
But yeah, after the trend of the past century, it's generally a losing proposition to bet against miniaturization or future development. It's not going to happen overnight, but it probably will eventually, and likely not
that far in the future, especially given that you can already buy glasses with rudimentary projection displays today.
I remember quite clearly that when the first, barely-functional iPhone came out, I thought to myself, "Part of me doesn't want to believe this, but I expect that in the not-that-distant future a version of this thing will have more computing power than my top-of-the-line Power Mac, and some time later a supercomputer. I believe it took less than 9 years to best that day's top-of-line desktop. My phone today is competitive with the fastest computer in the world from around 30 years ago, although not from 2007 (yet).
But more specifically on the miniaturization, It's kind of mind-boggling to think that I now have a pair of earbuds that are almost exactly the same size as the ones I was using 30 years ago, except they have no cord, much better sound quality, good microphones, better noise cancellation than even existed 30 years ago, a wireless bidirectional link to a pocket-sized device sitting on the other side of the house, surreally good tracking of the position of my head, and a touch sensor, and can do all of that for several hours with the onboard batteries.
30 years ago, that wasn't just "miniaturization", that was speculative science fiction. Even most near-future science fiction 30 years ago didn't take it that far.
Never mind that I'm wearing a watch that includes a cell phone, wireless LAN, roughly-SDTV-resolution color screen, speaker, microphone, a multi-core computer with 64GB of storage and 1GB of RAM, a GPS system and compass, and throws in a blood oxygen and heart rate meter plus an EKG, and it'll run all day on a battery and is waterproof. Just the
antennas on an early cell phone, GPS receiver, or wi-fi card were bigger than the entire device, and sizes of any one thing individually ranged from a brick to a suitcase 30-50 years ago.
It won't happen tomorrow, it probably won't happen for a decade or two, but barring the complete collapse of civilization, it probably
will happen eventually, and well within most of our lifetimes.