Why do people die and not live forever?

The reason why human beings cannot live forever and must die is that the organs and tissues that make up human beings will always fail, which will inevitably disable the entire human system!
Biologically, why can't people live forever
Our bodies are controlled by complex and sophisticated systems (immune system, nervous system, digestive system, metabolic system, reproductive system), in which different parts of the organs responsible for different functions (our brain, heart, liver, spleen, gastrointestinal system, kidneys) are stored. There are many different types of cells in the blood vessels that connect these organs and within these organs. Since we were born, this perfect system has been silently serving us.
The reason we die is because our cells get old and die.
In the natural ecosystem, bacteria, viruses, animals and plants live together, and our body system will encounter the infringement of microbial viruses in the surrounding environment every day, which constantly fights for us, and there will be some damage or even damage behind every struggle. When such damage accumulates to a certain extent, its internal organs and various circulatory control systems can no longer serve us effectively, this is the time when death gradually begins.
For example, our genes replicate and mutate, and in the process, mistakes are made. So things got screwed up. The older you get, the more errors you accumulate, and eventually, as a system, it doesn't work well.
The heart of the human body, for example, cannot rest for a moment during the whole course of a person's life. Therefore, it is the busiest organ, and it also suffers from the violent impact of various emotions. Therefore, many people's hearts begin to have problems in middle age or even young adulthood, and even sudden death.
Every living thing grows in a certain cycle. In the case of salmon or oysters, the process is very fast, putting a large number of eggs in a safe place, and then they die. In the case of dolphins, tigers, etc., this process is relatively slow, unless it is preyed on. However, as humans, although there is no predator, there will be a certain cycle, with the growth of age, there will be brain atrophy, organ cancer, memory loss and a series of problems.
According to scientific research, life expectancy is also related to social status and health. On average, Oscar winners live four years longer than the average Hollywood actor. Queen bees live 10 times longer than worker bees.
People do not have to die, and there may well be another outcome to choose in the future.
Let's just say, could a chip be implanted in the brain and read people's thoughts directly? In this way, human perception and computer input and output are seamlessly connected.
But at the same time, your intellectual and physical strength is greatly strengthened, such as Einstein and Superman possessed at the same time, but also can arbitrarily transform their own body and brain, shaping a perfect body that has never appeared since the creation of God.
Would you like to live forever?