If there are only 1 male and 1 female left on the earth, how long will it take to multiply to 7.6 billion people? The answer is cruel

We all know that the continuous increase of the population means that the more territory that needs to be occupied, the greater the proportion of resource allocation, and the impact on life is still great, but for individual countries, the population is the basis of economic development, and for this reason fertility is encouraged It is something that must be done. Once the population growth rate slows down, effective countermeasures must be taken and the focus will begin to shift. If we remain indifferent, the consequences will be disastrous. India is the representative.

Today, the world's population is still growing. According to the statistical report of the United Nations, as of 2020, the global population has reached 7.6 billion, and it will exceed the 7.7 billion mark in a few years. Through this data, some netizens asked an interesting question, that is, how long would it take to multiply to 7.6 billion if there were only one man and one woman left on the earth? The answer is brutal.

Some people choose to ignore the key points of the problem and speculate about the age, some think it will take several thousand years, some think it will take a year, but according to the conclusions of human biology, the third generation may be completely extinct. Among them, the most difficult thing to overcome is the issue of "consanguineous marriage". Someone once ridiculed that "give me a woman and I can create a nation", but when facing close relatives marriage, everything becomes empty talk, which is a reality that must be faced.

After a man and a woman are combined to give birth, a new life is born. After a few decades, the man and woman will grow old. His son needs to marry someone else, but there is no suitable partner. At that time, he can only be with his sister or sister, and they will multiply. The probability of problems in the offspring of a woman is very high. Assuming that it is an incurable disease, it means that the hope of reproduction will be completely eliminated, so one man and one woman can last for a hundred years at most.

In order to avoid this problem, some scientists said that at least thousands of men and women are needed, so as to prevent the problem of close relatives, so that the children born in this way will be healthy, and then the children will marry the children of other families, as long as they do not repeat, or every five generations. Or six generations, basically nothing will happen, and the population will increase immediately, but it will be a long process to reach the scale of 7.6 billion.

According to scientists' speculation, it is impossible to achieve without 100,000 years. After all, people are not animals like pigs or dogs. They can give birth to many lives each time, and the limited number of lives will naturally take a long time. Therefore, if a nuclear war breaks out in the future, causing human beings on earth to disappear, and only a thousand survivors remain, they will need a lot of effort to restore their current population size, and they will have to instill various ideas to encourage reproduction in their offspring.