The black robot in front of me is really simple. Its body is very simple, consisting of several transmission shafts and various pipelines. Some pipelines are exposed outside. Only the brain is a sealed black sphere, and there is no clue in it.

This robot has no facial features, only two cameras represent the eyes on the front of the head. The fingers that Wang used to knock on the head were also slender metal knuckles that did not cover the skin.

Not to mention the modern cylindrical end-sending robot that Su Mei encountered before, even with those sophisticated mechanical beetles, the gap between them is like the difference between the master's works and the children's graffiti.

Looking at the surprised expression on Su Mei's face, Wang laughed. The laughter at this moment was emitted from the speakers on the robot. What surprised Su Mei was that the synthesized sound did not feel mechanically stagnant, as if it was really a middle-aged man in his forties or fifties laughing happily in front of him: "Are you very curious and surprised? Why am I like this ghost in front of me?"

Su Mei nodded seriously.

Wang raised his head in the wheelchair, and two black cameras stared at Su Mei's eyes.

"Do you know the lifespan limit of the human body?" Wang said.

"This." Su Mei is not a major in biology or medicine. Although life span is always an important issue related to everyone, because birth, old age, sickness and death occur every day around him, everyone is ultimately forced to accept the ultimate truth that a person will die when he is born.

Therefore, girls really don’t know much about the limit of the human body’s lifespan.

"One hundred years?" Su Mei casually missed a number. After all, I really don't know this, but even with the development of technology, it is rare to live for a hundred years.

"It's almost the same." Wang laughed again: "There are scoring scientists using growth period measurement algorithms. The lifespan of mammals is 57 times that of growth period. The growth period of humans takes fifteen to twenty years. Therefore, it can be determined that the natural lifespan of humans should be between 100 and 175 years."

"There are also biological scientists using sexual maturity algorithms. The lifespan of mammals should generally be 8 to 10 times that of sexual maturity, and the sexual maturity period of humans is thirteen to fifteen years. From this, it is estimated that the natural lifespan of humans should be between 100 and 150 years old."

"As for cytologists, we use the product calculation method of the number of cell divisions and division cycles. The number of cell divisions in the human body is fifty times and the division cycle is three years. Then the natural life span of a human should be between 110 and 150 years."

"So, in summary, no matter which algorithm is used, the physiological limit of human beings should be over 100 years old." Wang said with a smile: "But do you know why, in reality, few people can live above 100 years old?"

"If it is a period of war, we ignore it, but if it is a period of peace in abundance, we are not threatened by hunger, but even so, it is still a very rare life span of over eighty years."

Su Mei has never considered this kind of problem. After all, it is really a bit difficult for you to ask a girl who is nineteen years old who doesn't need to consider the limits of natural physiology to think about these problems in advance.

The girl has also passed the carefree girlhood, where she only needs fantasy.

"Probably because it is difficult for a person to maintain an absolutely healthy body?" Su Mei said: "Just like the life expectancy of animals in nature may be decades, but the average life expectancy is far less than this."

What's more, we have all kinds of blessings like 996, don't you think?

"Hehe, it's almost like this." Wang Qing said with a chuckling.

"Because the human body is a precision machine, you should often hear the news that some terminally ill patients choose to donate their healthy organs to others. The human body is such a precision machine that when one system and one organ in the middle are damaged, it will be difficult for people to continue to survive." Although Wang looks like a cold and dull robot, he is really the image of a graceful and elegant scientist when speaking, which makes Su Mei want to know what the other party looked like before putting his head in this iron lump.

Of course, Su Mei already understood what Wang meant.

"The organs of the human body also have their own corresponding lifespan. The most typical one is the skin. Although the skin can be constantly renewed, after the age of twenty-five, the skin begins an irreversible aging process, and most people's skin begins to age and lose water." Wang gave an example. As a girl, Su Mei is very concerned about her skin. Although she is only nineteen years old, she instantly feels a sense of crisis when she hears Wang say this.

"The aging cycle of the skin is twenty-five years old, and the kidneys are over fifty years old, and the filtration volume begins to decrease. Therefore, many elderly people will get up at night more often. As for the lungs, the lung capacity will gradually decrease after the age of twenty. Many athletes' physical fitness is the decrease of lung capacity. After all, muscles can still be strong until the age of fifty, but endurance will decrease due to insufficient support capacity. Other organs such as the heart and eyes will also gradually age with age." Computer terminal::/

"Or it was when humans evolved that they did not consider living to their limits of their physiological lifespan, because for a human individual, as long as they complete reproduction and cultivation of juveniles, they have completed their own tasks. So from a biological point of view, humans have no corresponding value to this population at the age of 40, unless they can continue to give birth."

Su Mei always felt that Wang was talking about a very dangerous topic. Fortunately, it is the end of the world and there is no need to say what he said to him. If a scientist in the real world dares to say that humans are useless when they are forty years old, they can consider dying, and they will definitely be scolded by public opinion so that they cannot take care of themselves.

"So?" Su Mei tried to guide the other party's topic.

"So, among the many organs of the human body, only the brain can always remain active, or the organ combination of the human body itself is ultimately to meet the survival needs of the brain. However, because of the unqualified other organs, the body is dragged down by those lesions, thus implicating the brain itself."

Su Mei finally understood.

"So you took out your brain alone to cultivate it, so that you can achieve a longer life span?" Su Mei sighed a little.

Yes, it's possible in theory, but the question is, how many people are willing to do this?

Are you willing to lose the fun of eating, playing and communicating, and become a brain machine that lives just for the sake of life?

"If you understand this way, you're not wrong." Wang Wenhe said, not angry because of Su Mei's slight sarcasm.
Chapter completed!