Phase Change

Nothing at all happens to the individual molecules when phase change takes place, instead only a rearrangement of their positions and motions. AND the two phase can coexist (like ice floating in water) at any scale in the whole (little ice or big ice) – the pattern of the two phase are spread over a large range of scales. [like Fractals] (p169)

Lee Smolin, The Life of the Cosmos, 1997, Oxford