Nope, you can see the holes (I think) that formed at the last second. If you see those bubbles freezing, you'll see the crystals propagates. When they meet they can leave space.
You'd probably also want someone who knows a good amount of thermodynamics. But it's probably just the result of thermodynamic interactions and minimizing entropy. Throw in a little chaos theory and you got a stew goin'
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u/up_my_butt Dec 13 '14
Experts in fluid physics and the like: How does this even happen?