A college student, Richard DeVual at MIT has invented memory glasses which work as "virtual post-it notes" that show up in a tiny spot on the surface of your glasses lens. Apple has set it's sights in this invention, having just hired him. This is a cool idea but I think its pretty useless. Our Iphones have calendar apps which you can program to remind yourself of important events. A post-it popping up an inch in front of your eyes while you're driving probably isn't the safest thing either. If the very act of talking on your cell phone raises your risk of a car accident, think of how dangerous this would be.
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