Human civilization has evolved from scratch and has evolved for tens of thousands of years. But if the earth's civilization is destroyed, it is equivalent to modern humans returning to the Stone Age . How long will it take to rebuild modern civilization?
First of all, obtaining fire should be a very simple matter for a modern person. Having fire can at least guarantee survival. After all, modern humans are different from apes . Without the support of technology, modern humans cannot cope with harsh environments. The resistance ability of human beings is very poor. It is believed that the Stone Age, which took the longest time in the evolution of human civilization, will pass soon.
Next, humans must learn to use metals. Unlike stone tools that can be obtained from nature, metals need to be extracted from various ores. Modern humans who are accustomed to using machinery and advanced methods to refine metals, in The transition from stone to metal could have consumed generations. This process may also be the longest in the entire history of civilization reconstruction.
Since modern humans have learned language and writing, knowledge can be passed on smoothly. Once humans enter the metal age, the process of rebuilding civilization will inevitably be greatly accelerated. All they have to do is to continuously improve their craftsmanship, and then Everything that follows will fall into place, from the steam age , electrical age to the current digital age. The tens of thousands of years of human civilization evolution may only take hundreds of years to be rebuilt. Of course, we don’t want the day when civilization needs to be rebuilt. What’s more, even if one day comes, what will be destroyed is more likely to be human beings’ only civilization.
