The game of life can be seen as encountering all kinds of constraints (constraint) daily life, and then constantly finding the constraints that make you feel the most oppressive at the moment, relaxing them, breaking through them, or bypassing them completely from somewhere else. Every time I rely on my own efforts and successfully break through the oppression of a certain constraint, I have an extremely satisfying sense of achievement. But after a while, boredom hits, and people are eager to find the next problem about constraints, to solve it, to break through it. Boredom drives you to solve new problems. However, if we can't properly control the sense of boredom and do not look at the problem from the perspective of constraints, we will draw snakes and cocoons ourselves, artificially creating completely unnecessary new constraints. For example, some people don't have much financial pressure, but they want to toss some high-risk start-ups, and as a result, they lose all their funds and lose their health, adding unnecessary health and money constraints to themselves. For example, for middle-aged people over the age of 40, the constraints of physical health are becoming more and more important. There are three main dimensions of constraints: deterioration of cardiovascular health, decreased muscle strength, and slowed metabolism ( decreased insulin sensitivity ). If you don't pay attention to deliberately relaxing and controlling these three constraints through physical exercise, these three constraints will accelerate after the age of 60, and the vicious circle will make everything else meaningless. Another example is the highly leveraged speculators in the financial crisis who were forced to dump high-quality assets cheaply, because they were too tightly constrained, and had to trade at a loss with unconstrained buyers at very bad prices. Another example is that one of the basic principles of maintaining power is that you must always keep two or more choices on the key thread, so as to avoid being constrained by a single choice, otherwise you will completely lose your bargaining power after being overheaded. For example, some people love to seek excitement when traveling, climbing steep mountain roads, or going to the windy and rough beaches to play surfing, quietly increasing their constraints and not caring about it, and when the risk is too late. Being less constrained does not necessarily mean that a dimension is powerful or extremely wealthy. But compared to other superficial powerhouses in the secular sense, he will most likely avoid the risk of sudden destruction due to "too tight constraints". Sayings such as "people are in the rivers and lakes, and they can't help themselves" and "the height is not cold" are just a helpless expression of "too tightly restricted". Rather than comparing the strength and weakness of a single dimension with others, it is better to compare whose overall constraints are fewer and looser.