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Yes, Glass may fail, but it seems obvious to me that the perpetual shrinking of technology is an unstoppable trend that was set in motion decades ago. It turns out that computers, and phones, and recording devices, and the internet are all really useful technologies, and people like having access to them wherever they go with as little hassle as possible. As time approaches infinity, the likelihood of our brains beco…
Trying to stop it is impossible, and merely complaining about it gets us nowhere. On the contrary. I fully expect that in many places, overtly creepy technology like Google Glass will shift a long-overdue privacy debate that seems to be gathering momentum. If technology like Google Glass becomes socially unacceptable and illegal, it will not become pervasive in the manner you described.
It if becomes socially unacceptable, then it's just a matter of time. People don't like Glass because it looks clunky, nerdy, and distracting. What happens when technology improves to the point where it looks like a normal pair of glasses? What happens when we can put a chip in a contact lens? A phone in your brain? Your brain in a robot?