Another advantage Google Glasses may have: taking us out of a world of screens and little boxes, and into a world where the technology around us is near invisible (beyond the geek-hipster frames sitting on your face).

FORBES: Google's Competitor For Facebook Isn't Plus. It's Project Glass.

As a purely newspaper reporter I was literally invisible beyond the faceless by-line.

CNN: A life-changing experience

This dry riverbed marks the invisible boundary beyond which she can't safely go.

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