Why does life have to die? Since people must die, what is the purpose of the universe creating us? Before I say this, I have to tell you a more amazing fact, that is, the universe itself is heading towards death. And all this is related to an extremely powerful concept, which is entropy. What exactly is entropy?
In the mid-19th century, German physicist J Meier proposed the law of conservation of energy in on the basis of experiments, and then physicists discovered that energy would be wasted. Therefore, in chemistry and thermodynamics , the initial concept of entropy refers to those wasteful energy. However, in further exploration, scientists seemed to have found the ultimate secret of the universe, but brought themselves double despair. It is the second law of thermodynamics, also called entropy increase law . The first despair perpetual motion machine 's idea is shattered. Its complete Kelvin expression is impossible to extract heat from a single heat source, so that it can be completely converted into useful work without causing other effects. It’s like you can’t use all the energy consumed by bicycle to generate electricity, and there will definitely be friction, collision and other actions, which will waste energy. This determines that the perpetual motion machine cannot exist. The second level of despair, everything is dying. It refers to an isolated system in , and entropy always tends to be maximized. What does it mean? Entropy is here with the degree of chaos of this system. The more chaotic the entropy, the greater it is. In fact, it is easy to understand. If the universe is your room, the entropy value of the tidy room is small, and the entropy value of the tidy room will be large. If you don’t organize this room, it will definitely become even more chaotic. Asteroids and comets are like clothes and socks in your cabinet, and are eventually discarded at will. The sun's extinguishing is like your light bulb. It will definitely break after using it for a long time. The earth, like a pumpkin placed at home, will sooner or later rot and shatter. Even the black hole with a very long life spans the faucet of water dripping at your home. The water will dry out one day because the black hole is slowly radiating out matter, and finally evaporates all of it, and all the energy in the universe will be wasted. Entropy is always increasing, just like your house only has a bucket of diesel for power generation. When it is burned, the whole room will fall into darkness. In an unpredictable billions of years, even a beam of light will not exist in the universe. All matter will become some no longer active particles. The universe is equivalent to complete death. Are you thinking that the end of the universe seems to have nothing to do with you now, but entropy is also dominating your life, and even your life trajectory.
Why do people have to die? Can't we really live forever? Everyone hates death, everyone has parents and relatives and friends, but about 150,000 people die every day on Earth. Maybe at some point, these people will leave you forever. Have you ever thought about whether we can live forever? But Hawking said that it is inevitable for the universe to die, all living things, including humans, toward death. So is authority really not challenging? Even if death is inevitable, can we live longer? According to an article published by lancet impurities in 2016, the lifespan of human brain nerve cells is between 110 and 185 years, and most cells in the human body divide about 40 to 60 times. No matter which one of them reaches the limit first, the human body will die. We currently know that the Galaspago tortoise can live 170 years old, the lobster can live to 140 years old, and the clams can live about 405 years old. Why is life so unfair? What is hidden behind it? On the surface, this is the gene that determines the longest life span of each species, but essentially it also determines the life span. Entropy represents the degree of chaos in a system. When you are born, entropy continues to increase, especially your brain nerve cells. Although the total number of them is as high as more than 100 billion, they will never change them in their lifetime. The longer the time, the more chaotic it becomes, and the brain cells will eventually die.Then some friends may say, if I were a mechanical body, could I live forever? Hibernation in science fiction novels is to reduce human metabolism. In essence, it is to slow down the entropy of the body of and , thereby prolonging life. However, it must have a limit, so the immortality of the body does not exist. Even if it is replaced by a mechanical body, the entropy increase of the brain nerves cannot be changed. You may not live to be 200 years old. You must fight death as soon as you are born and look for the meaning of life. Otherwise, what is the difference between it and animals and stones? The second law of thermodynamics also tells us that it is impossible for the system to spontaneously move from disorder to order. Entropy is always increasing, and everything is spontaneously moving to chaos. This is why people always tend to be lazy and always want to try their luck together but don’t want to work hard. In fact, they are controlled by the increase in entropy. The only way to reduce entropy is to do work, or add energy, and recharge yourself with learning and hard work. Move against entropy, reduce your entropy and control your life, rather than being controlled by entropy. All success and beauty come at a price. Even if you win the lottery, a few people will be lucky and most people will be unlucky. The law of entropy increases also applies to the entire human civilization.
Our current technology is becoming more and more developed, from the previous carriage to the current high-speed rail, from the previous letters to the current telephone, the essence of human beings to the improvement of efficiency and the degree of order. Everything we do is to make life more and more convenient. This process is to continuously reduce the energy loss rate. In fact, it is to fight against the most terrifying law in the universe, the law of entropy increase. The law of entropy increases shows that everything is spontaneously moving towards chaos. The jungle law of primitive tribes , and the strife during the Warring States Period is a world of great entropy, and civilization is to reduce entropy and make everything orderly. In the past, countries fought every time, and they could be angry with each other. Now, we tend to sit down and talk first, because war will definitely cause people to live in poverty and not eat enough, and at the same time, it will cause great resource consumption and waste. Wouldn’t it be more pleasant for everyone to develop well with this time? But will everything be fine if everyone develops together? In fact, our distinction is only to reduce the local entropy value, but the entropy value of in other places has increased significantly, and this approach comes at a cost. In the past agricultural era, human influence was limited, so it doesn’t matter how to make things happen. Since the industrial revolution , we have greatly consumed oil and coal resources, and the price is to increase the entropy in other parts of the earth exponentially. In layman's terms, the price of civilization is environmental pollution, which is reflected in carbon emissions and global warming . Global warming has led to typhoon , heavy rain, drought and other extreme weather becoming normal. If you blow air conditioner in summer, you feel very cool, but more heat is emitted outside the house, but human civilization must move forward. If people don't blow air conditioner, they may be heated to death. No one wants to return to the primitive society. Therefore, we now advocate sustainable development and controllable nuclear fusion. In essence, it is to save energy and slow the entropy of the earth. Only in this way can human civilization go further. Then the universe itself is like an existence similar to the brain, and it is also moving towards death, and the emergence of life may be that it is fighting death. In this regard, the final question of the science fiction masterpiece of Asimov gives a shocking answer. billions of years later, human consciousness body spread throughout the universe, and the supercomputer invented by humans also covers the entire universe in a high dimension. When the universe reaches its maximum and darkest entropy value, it is at the end of destruction. The last human consciousness body merged with the supercomputer, and the computer then whispered softly - there must be light.
