That's the thing, the stuff you described isn't a phone replacement; we don't use our phones to do that right now. I do think that AR and holographic projection (which is also advancing very nicely, and having some very cool tech demos[1]) have a lot of interesting uses, but it's not doing the stuff that we use phones to do now (reading websites, watching videos, listening to music, text chatting, etc).

I don't know how anyone is excited to hear, "hey, with this you can watch videos just like on your phone, but the video is also kinda transparent so it's harder to see!" (which it has to be, or we're really gonna be seeing car accidents skyrocket).

I think there is value in doing certain things one-at-a-time, with full attention, but this makes some of those into overlays that you're now sharing with other tasks.

[1]: https://newatlas.com/vr/voxon-photonics-3d-hologram-volumetr...