The structure of glass is, frankly, a bit of a mess. Clear and perfect as it might appear to our eyes, down at the molecular level, glass looks more like a random ball-pit of atoms. The technical term for this jumble depends on who you’re asking: for some scientists it is an “amorphous solid,” for others a “supercooled liquid.” In theory it’s both liquid and solid, though, given the way it behaves, in practice it’s really the latter.
