Transcript:
Well, a small number of tiny things started vibrating a lot. Then they wobble some other things, which wobble a lot of other things, resulting in a significant increase in disorder.
What about the living things inside?
That is a meaningless distinction.
You can call it an increase in disorder, but it is actually a return to the proper order, with covalent bonds that contain more energy than they should being allowed to relax and let go of the excess, separating and recombining into more comfortable arrangements.