First of all, let's talk about the Chinese crossing plot, tracing the history of China's crossing literature, the earliest can be traced back to the Jin Dynasty Tao Yuanming's "Peach Blossom Yuan Ji", from the Jin Dynasty to the Qin and Han dynasties, and the background of the Jin Dynasty is that at the beginning of its establishment, the Sima clan compromised with the Shifu class politically, which brought about the political drawbacks of the monopoly of the elite group, hindered the social upward channel, and aggravated the social suffering of the lower classes.

At the same time, the rising northern nomads, and the Zhou tribes, due to the collapse of the Han Dynasty, lost the military suppression and political balance of the Central Plains, brought about geopolitical conflicts, and intensified military conflicts, and brought impact and harm to the domestic society, especially in the late Eastern Jin Dynasty in which Tao Yuanming was located, social turmoil, foreign invasion intensified, and after experiencing a lot of chaos, the domestic people were miserable, so "The Story of the Peach Blossom Spring" reflects the Jin Dynasty, Tao Yuanming's relative stability and strong vision for the Qin and Han dynasties.

Second, there has always been a cold joke, Chinese talk about crossing, often go through the past history, while Americans talk about crossing, many of them wear to the future, China is because of the thick history, the big books are endless, and the United States has no history, can only wear to the future.

Of course, it's a joke, but there's some truth to it.

Chinese like to travel through history, standing in the perspective of small works, but only small personal views, representing the general concept of public opinion, largely because China has too brilliant history, and at the same time there is too tragic national pain, especially from the perspective of modern thinking to look at history, modern people often ignore historical limitations, with modern cognition, ideas, technology, policies, preconceived to see the past era, which brings about things that modern people seem to be very tolerable, the ancients are not a fool to do this.

In fact, at the crossroads of many historical turns, the outcome of history may not be the best, but it is not the worst, because if it must be the worst outcome, there will be no today. Because the worst outcome of history is that the history and culture of the nation are completely ended, and like all the nations and history that have been destroyed, they will always remain only in writing, for the memory of today's people. Just as the Qin people have no time to mourn themselves, and future generations mourn them, it is the same reason.

In addition, China's too glorious history, too tragic modern history, and the historical opportunity of the industrial revolution have also prompted readers and authors to hope for a kind of spiritual feasibility, through the crossing to change history, so that China can move towards another possibility, so there is historical crossing, as for other kinds of crossing, I will not repeat it here.

Third, the essence of crossing is not the protagonist, this is the core ignored by many people who write travel essays and readers, and even in the future with the development of science and technology, or some accidents, that is, the protagonist crosses, and what is crossed is actually a big system, not a fierce and witty person, and then a set of things that the ancients have not seen, cleverly solve problems or solve problems.

In fact, the ancients were much smarter than the modern people, of course, the premise is that it cannot be compared horizontally in parallel, but vertically.

For example, the guide car that appeared in the Zhou Dynasty, after the restoration today, is a kind of mechanical stroke recovery sensor in the industry. The military production system of the Qin Dynasty was almost as accurate as it is today. At the same time, the standardization, systematization and streamlining of industrial production in the Qin Dynasty were not fully realized in the West until the nineteenth and early twentieth centuries, while the standardization of the Qin Dynasty was more than 2,000 years earlier.

Another example is that mechanical gyroscopes have appeared in the Tang Dynasty, and now they are lying in museums, ternary equations and calculus appeared in the Southern Song Dynasty, of course, Chinese medieval literary expressions, not modern common Western expressions, the principle of quaternary equations appeared during the Yuan Dynasty, and the West did not complete Westernization until the end of the nineteenth century, and the quaternary equations were completed with the help of the Chinese, and while China broke through the ternary equation, the West was still arguing between the hexadecimal and decimal systems, and the unary equations were still babbling.

Therefore, the traverser should not pass through the individual character, or simply create any technology, but the system it brings, only systematization, and the completion of the original technology, capital, rights, productivity, talent accumulation, in order to realize the protagonist's will into action.

(End of chapter)