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The documents are still flat, but you can position them anywhere around you, in any orientation. You can see the real world past your documents.

The goggles have motion sensors in them so that when you turn your head, the documents appear to stay in the same place, relative to your surroundings.

Using the goggles, you could position documents beside you, in front of you, behind you, above you, and below you. You could have a spreadsheet that's six feet tall. If you add a global positioning system (GPS), the goggles could also be used as a virtual tour guide.