It can’t be nothing, because when we look in we can clearly see nothing, thus making it not hidden. This means something must be inside of the box, but such a statement would negate the meaning of it being an empty box. SO could it perhaps be an abstract idea that is hidden? Is it the idea of something being hidden that is itself hidden within the box? We do not know whether something is actually hidden or not, nor where it might be hidden if at all. This leads me to conclude that it is the uncertainty of the thing hidden in the box that is in fact hidden. It is the abstract idea of that which is or is not hidden.

What do you think?