Well, logically, all you'd see is you from every angle imaginable (mindfuck?) but the question is what you'd see if there were nothing in there, and I mean nothing. You see, if anything enters a mirror box, and I do mean anything, all that it could see would be itself from every angle, because of the refractive nature of light. Of course, the light would, invariably, run out, so it would be a little mindfucky in that aspect. However, if there were nothing (and any cracks invalidate this), all one could see would be the mirrors, and since mirrors have no image of their own, the question is what you would see. Of course, this is like the "If a tree falls in the forest, and nothing is there to hear it, does it make a sound?" thing: paradoxical and provocative. It's good for widening your thought, that's all. Of course, should any /x/philes MAKE a mirror box, that /x/phile should tell the rest of us so we can all check it out IRL...