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DO NOT USE GLASS FOR DRIVING.

It is illegal, is not safer than a car docked phone and since it moves your eyes away from the road is extremely dangerous. Stop being so selfish and stop the car. Studies have shown that when you are distracted you are more likely to crash. So innocent people's lives are at stake here.

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Glass is a perfectly fine way to get directions while driving. Just listen to the voice prompts and ignore the screen. Heck, one can push the prism up to the top of your head so there's no chance to see it.

(To be sure, one can also do this with a GPS app on a smart phone, but having left a phone behind in a rental car, I see value in using a device that's attached to me.)

It is not illegal in most states (IANAL). I agree it is less safe than fully focusing on driving (as is talking to a passenger), but I'd much rather have people glance up briefly and speak out a text than look down at their lap like they do today. Each state will figure out where they draw the line on this, I personally think it is safe when used with care (like a navigation system).

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