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Yup! I cringed when I read the above comment and imagined working in Excel on current AR displays. Resolution is still an issue, as you've stated, and there are still heaps of issues in the realm of focal depths/focal rivalry when it comes to AR. Current displays have a set focal depth and people don't realize how much that can affect things.

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There is work[1] to address focal issues, and obviously resolution will continue to get better. I notice the focal issues in VR racing sims when I glance between my mirrors and back to the track, you expect a shift in focal length and it hurts your brain when there is none.

I'm still excited to see where HMDs get to in the next 5-10 years, both AR and VR.

Oculus Research' 'Focal Surface Display'

1: https://www.youtube.com/watch?v=W7JjANVKINA

So I haven't tried the tech, but one of the main advantages of the 'light field' tech they've been developing is supposedly solving this focal length issue - i.e. near things appear at a different focal point than objects farther away. Can't say how well it works in practice though.

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