That's because the form factor of an iPhone is not fundamentally different from a 1998 Jornada. All we had to do is keep putting different stuff in the box.

That's because the form factor of an iPhone is not fundamentally different from a 1998 Jornada. All we had to do is keep putting different stuff in the box. What if we changed the rules altogether? Suppose we demanded a phone that was a slab of glass. Literally. A rectangle of glass that you could see through. No visible antennae, no visible battery, no visible circuitry. when you activated it, you saw the same hi res and bright screen you see today on your ios or android device. Now the battery has to be clear. The antennae have to be clear. All the circuitry have to be clear. Could we get that in the 20 years from 2002 to 2022? Probably not. And AR glasses would represent a leap that goes even further than that. I'm not saying it can't be done by 2035. I'm saying they would have to get extraordinarily lucky with battery chemistry and display tech to have any chance of making an AR glasses product that did not have serious drawbacks by that date. They'd have to get so lucky that I would feel comfortable betting against it.