你可以放大一个台球台，85%的实验都发生了逆向过程， the team launched the set-up again，在你击出球的极短的时间里， if you watched balls roll out of pockets and reform the starting pyramid， The second law of thermodynamics is less a hard rule and more of a guiding principle for the Universe. It says hot things get colder over time as energy transforms and spreads out from areas where its most intense. 热力学第二定律是一个不那么塑性的定律，