Whats unreal ?? We are basically virtualizing the gates . Think of a virtual gate in your mind and set the more inputs to it, will it not give the real answer. Ya! this will not be followed up for other complex circuits, but since gates are primitives in Digital World, we can have this kind of thing, according to me ! 
But we can ask mentors also ! @jayrambhia  what do you think about this approach ??