I’m sure if I start, you can finish with me:
‘Humpty Dumpty sat on a wall.
Humpty Dumpty had a great fall.
All the king’s horses and all the king’s men
Couldn’t put Humpty together again.’
It’s one of the oldest nursery rhymes in the English language. It’s also incredibly versatile – so versatile that it’s been used to illustrate the second law of thermodynamics, which states that the total entropy of an isolated system can never decrease over time, and is constant if and only if all processes are reversible. Or, as I understand it, that you can’t put Humpty together again. Lower entropy is order, solidity, and stability. Maximum entropy is chaos, dissolution, destruction. I’m pretty sure I’m right, but if I’m not, someone will correct me.
But it doesn’t take a theoretical physicist to understand that once the logs have been reduced to ash, you can’t burn them again;, and that you can’t unspill milk, so you shouldn’t cry over it, and that when Humpty Dumpty has a great fall, all the king’s horses and all the king’s men will be of no help at all.