What does it mean to be thousands of miles away?

A swift horse originally refers to a horse that is easy to run and can walk thousands of miles a day. Now it is often used as a metaphor for talents; Especially talented teenagers.

According to records, a bloody horse can walk 400 kilometers a day. Many experts question this. Some people say that even if the ancient journal unit is one tenth of today's, it is impossible for horses to run 400 kilometers a day. It's only a legend to travel thousands of miles a day and 800 miles at night. Horses can only walk about 150 kilometers a day, and can walk more than 200 kilometers a day at most.

In ancient China, the post station that used fast horses to transmit military information was called "500-Li Express", and the longest post station was probably not 250 kilometers. However, the word "Maxima" has appeared so many times in the history of China that it is hard to believe that it is really impossible.

For example, in a famous memorial to the emperor, Yue Fei mentioned that he had two horses that traveled thousands of miles a day, but they needed special breeding (not advanced, not to mention playing tricks). I remember that it was just clean water and fine grain, which was very scientific. ), so as to talk about the cultivation of talents-it is hard to imagine that Yue Fei will be an exaggerated example of the emperor.

It has always been thought that a swift horse generally refers to a good horse. The so-called "a thousand miles" is just an imaginary number. Because no one in modern times has seen a horse that can run 500 kilometers a day, however, the ancients mentioned many times in ancient books that their swift horses actually ran thousands of miles.

The reason why I don't believe in maxima is:

There is indeed a veritable galloping horse in the history of China. These Kyle traveled 298.65 kilometers a day, which reached the standard of "thousands of miles" in the concept of length at that time. There are two reasons why later generations of China people don't believe in swift horses:

①? The change of the system of weights and measures has caused the misunderstanding of the concept.

As far as seeing is believing, modern people can't see a horse that can walk 298.65 kilometers a day. Because of the lack of chasing by tigers and wolves on the vast grassland, domestic horses gradually lost the courage to gallop thousands of miles.

It can be seen that Maxima does not run as fast as many people think. In fact, a swift horse is just a good horse with very long endurance.