..and I've watched them, before, thumbing the little buttons I have no idea what are for -possibly trim control.. being in the 3D space is a game changer, tho, cuz the world is all around you no matter what you do.. way more accurate to real life than using a flat screen.. You should try to find one.. I think you'd be impressed..

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Friendship is like peeing your pants.. Everybody can see it, but only you can feel the warmth..