"You would think that shaking up a box with a couple of chains inside
would end in sadness and a bunch of knotted chains.
But as you can see in this video, it doesn’t always work out like that.
These two chains - both made of plain metal beads - coil and uncoil around each other
until they are completely separated.
The box is shaking at about 20 Hz, or cycles per second,
and the photographs were taken five seconds apart."
It is an error to equate entropy with chaos.