3D worlds that open before your eyes when you put goggles on: that's what virtual reality offers, and we've already seen plenty of devices offering that this year and early next. But when those goggles open up and allow you to overlay unreal, virtual 3D objects into your actual field of vision? That's a whole other ballgame, and Magic Leap is promising exactly that. Magic Leap is a tech startup in "stealth mode." Based in South Florida, it's attracted investments from Google and others, and visionary talent including Richard Taylor, founder of "Avatar" and "Lord of the Rings" special-effects company Weta Workshop, and visionary futurist/novelist Neal Stephenson. All the while, Magic Leap's signature technology has been kept largely under wraps, except for a handful who have been granted access to it without signing a lengthy non-disclosure agreement.