The first thing I want to say is that first of all, treat this book as a novel. Real science cannot explain such magical things as time travel.
Then, the timeline I am talking about is based on the theory of classic American time travel movies from the 1980s.
That is the axis theory.
I really want to draw a picture, but unfortunately I don’t know how to put it in here.
For example, five thousand years of history is like a straight road, so this road is the time axis.
Because the protagonist traveled back to 626 AD and changed the history of 626 AD.
Next, two different theories will appear. One is the same change, which means that there will be changes in the future.
Another theory is the time axis differential path theory.
You can understand it as an intersection appearing on a straight road, an intersection at an angle of about 45 degrees. This intersection will take you farther and farther away from the original timeline.
History is extremely restorative. It may deviate from the original timeline and return again. But it can also reach a state of gravitational balance after leaving a certain distance, just like the moon orbiting the earth.
At this time, there are two different timelines, with two different futures.
Let’s talk about the four days.
Four Days is based on a science fiction novel written in Europe in the 1980s. Of course, it is also a non-scientific novel, so I won’t go into it and just regard it as the author’s own design.
Four days is a relative value.
After the protagonist has been in the Tang Dynasty for four days, he must return to modern times, and the time spent in modern times is four hours. Of course, there may be an error in time calculation in a certain chapter.
Similarly, if you spend four days in modern times, you still need to go back to Datang, and the time spent in Datang is also four hours.
Then the timeline appeared and the time machine evolved.
When the protagonist changes history, he enters a new intersection, and then a time difference appears.
In the first stage, one to two, the protagonist will return to modern times only once after eight days in the Tang Dynasty. The time consumption is also four hours.
Then, this will increase or decrease due to changes in the timeline.
When time is forced to make up for the difference, it is like saving the opportunity to go back and forth several times, so it is much simpler to understand.
Regarding the issue of age, let the author keep it a secret. This is related to a huge pit in the future, which is enough to lure everyone to Baidu for hundreds of times, hahaha.
Thank you everyone for liking this book,
If there is anything unreasonable in the design, please feel free to mention it.
Don’t be afraid of making bricks, and reject the scumbags and trolls.