It could also be that, also over an immense period, glass will eventually crystallize and become a typical solid. In this light, glass is just liquid “that’s sliding on its way to being a crystal,” Mark Ediger, a chemistry professor at the University of Wisconsin Madison, says.
But there’s another exciting possibility here: that instead of crystallization, over very long periods, glass can inch closer to the state of “perfect disorder,” as Ediger describes.
“Let’s suppose that you have boxes,” he says, “many different boxes of different sizes and shapes, and you’re trying to pack them all into the back of a U-Haul.” If you manage to squeeze all the boxes in the back of the U-Haul, with no possible room for any others, and there’s only one possible configuration of the boxes that will allow you to do this, that’s perfect disorder.