"(aside of the bulkiness of most real-world kit needed to experience it)"
If you look back about 70 years the size of media toys has reduced enormously. Many things marketed as "portable" were in fact "luggable". There was a point when radios had shrunk enough for the volume control or tuning knob to be considered the limiting factor - then they became even smaller.
In about the last decade a 21" monitor has been reduced from a CRT needing two people to lift it with some effort - down to something you can pick up easily with one hand. Compare a smartphone with a 1996 era Compaq "luggable" PC that still needed a mains connection to power it.
Miniaturisation goes so far down the obvious technology track - and then a disrupting technology takes over.
Biting the hand that feeds IT
