[lj3]

I think 3d holographic projections will be bigger than both.

[ZitchDog]

Isn't that AR?

[adventured]

That's PR, projected reality. With AR you don't actually project anything into the physical world that can be eg observed by unaided eyesight.

[bacon_waffle]

Thanks for that - I've been tinkering with a Looking Glass over the last few evenings, and had found the relationship between it and VR to be awkward to articulate.