It's so hard for me! It's so hard for me! It's so hard for me! Why is it easy to give up but hard to persist? Why is it easy to be lazy but difficult to be self-disciplined? Why is it easy to become bad but difficult to become good? Why is it easy to become fat but difficult to become thin? Why is it easy to be distracted and difficult to focus... These questions may seem unrelated, but in fact they all follow the law of entropy. The law of entropy increase is a physical law proposed by the German Clausius, which reveals that things always develop in a disorderly direction and eventually lead to destruction. Among them, "entropy" represents the degree of chaos inside something. When the interior is chaotic, it can be said to represent a high entropy value. When the interior is orderly, it represents a low entropy value. This book uses 11 entropy reduction laws such as growth mindset, flow, Rosenthal effect, horsefly effect, Hawthorne effect, and compound interest effect to help you easily deal with a life full of troubles.