The restricted-level time and space travel of the Holy Ring is definitely a god-level skill, but this skill is not omnipotent, and it also has limitations, and this limitation is "the irreversibility of the same time and space".

This name was figured out by Yang Jing himself, in fact, it refers to the fact that if Yang Jing uses this skill to return to a certain time and space in the past, and contacts someone or does something in this time and space, then on this time and space line, Yang Jing can only continue backwards, and cannot shuttle forward from this time and space node, otherwise it will cause an extremely serious space-time paradox - the severity is enough to easily erase Yang Jing - this is a warning given by the Holy Ring, and the Holy Ring will not allow Yang Jing to do this.

For example, the first time Yang Jing really used the restricted-level time and space travel skill was not the one he tried in London, but the time he met Xue Renfa in 1994 in China.

On that time and space line, the time node of Yang Jing's first shuttle was the winter of 1994, so if Yang Jing wants to continue to shuttle on that timeline, then his second, third and all subsequent shuttles must be after the first time shuttle, he can only go backwards, not forward!

This is also why when Yang Jing shuttled to that timeline for the second time, Xue Renfa was ready to resign from the job of "collecting rags" for Yang Jing. Yang Jing wanted to shuttle forward, but it was impossible.

Later, Yang Jing shuttled to the time and space of 1979, from that timeline, whether it was speculation on London gold or the yen-dollar exchange rate, or even returning to Yanjing to buy a courtyard house, he could only continue backwards, and could not shuttle to the time node before 1979.

But if it weren't for this timeline, this restriction would be gone, which is why Yang Jing could travel to time and space in 1982 in Jinling, and buy this porcelain in the Chaotian Palace market and buy the "Qingming Riverside Picture". Because everyone or everything on this timeline has nothing to do with Yang Jing's timeline in the United States.

Later, Yang Jing shuttled to the secret base of Xiao Yuben at the beginning of 1979, also because this timeline was not involved with other time and space, so he could shuttle.

In fact, Yang Jing's main shuttle timeline is this American timeline, which is the timeline where he is now.

It can be said that this timeline is the main timeline for Yang Jing to realize his plan. Yang Jing wants to complete the accumulation of original funds on this timeline, and then make a lot of money through the major black swan markets, and finally achieve the goal of completing that plan.

So on this timeline, Yang Jing can only shuttle backwards, and can't shuttle to the time node where London Gold was hyped back then, otherwise Yang Jing will be wiped out on the spot, even if the Holy Ring becomes the highest level, it won't work.

But the problem is that there are already some signs of crisis in the original time and space, but in this main timeline shuttled, Yang Jing still has a lot of things to do, although the wealth accumulated now is very huge, but after all, there is still a big gap with the purpose of his plan.

Once he speeds up, it will inevitably affect the layout of this main timeline! Yang Jing doesn't want the plan he has worked so hard to lay out for several years to end in a castrated version so easily.

Moreover, as the time of this main timeline continues to move backwards, the time you stay in this main timeline will become shorter and shorter, after all, the limited-level time travel skill still has a time flow speed limit.

For example, it is 1988 now, and the limit of the thirty-year time node has not been exceeded, so if you stay in this time and space for eight days, the original time and space will pass for one day.

However, once the time node of this main timeline is moved backwards, for example, the next time you travel to 1990, then the time flow rate will be accelerated, from the current 8:1 to 4:1, and if you travel to the year 2000, then the time flow rate will be further reduced to 2:1.

It is impossible for Yang Jing not to show up for a long time in the original time and space, this is to prevent something sudden from happening in the original time and space, and his family and friends can't contact him, and it will be easy to cause trouble when the time comes.

The time that Yang Jing set for himself was about a week, that is, he could not disappear in the original time and space for more than a week.

It's okay to say that this time is in the 1988 time and space, after all, the original time and space can be a week, and in the 1988 time and space, you can stay for two months, and many things can be done.

However, as time continues to move backwards, the time spent in time travel becomes shorter and shorter.

With a long sigh, Yang Jing sat up with the quilt in his arms and muttered to himself, "If you don't want to end this plan so quickly, it will take more energy to shuttle in the future." It's a big deal to return to the original plane every few days, and then shuttle back after making sure it's okay. ”

If Yang Jing wanted to end this plan in advance, he was really unwilling, so after thinking about it, he could only use this method to resist it for the time being.

Although he slept late last night, early the next morning, under the urging of the biological clock, Yang Jing woke up on time.

Lifted the curtain and looked outside, and found that there was some fog outside, Yang Jing could only shake his head helplessly, canceling the idea of going out for a morning run to exercise.

In the 80s, the United States was good everywhere, but this air really did not dare to be flattered.

Before the information industry became the pillar industry of the United States, the industrial manufacturing of the United States was undoubtedly the most powerful in the world, and its status was equivalent to that of China 30 years later.

In the second decade of the 21st century, China's industrial manufacturing output value surpassed that of the United States, ranking first in the world, and was known as the "global factory". This name is certainly very good, but the price paid behind Huaxia is huge, not to mention that air pollution is one thing that makes the Chinese generation miserable.

The past two years have been better, because the country has made great efforts to start remediating pollution sources, and the air pollution situation in China has been much better in the past two years, but who doesn't know a "haze" in the past few years?

In fact, in the United States in the 80s and before the 80s, the situation was similar to that of China in the 21st century. Because of the pollution caused by industrial manufacturing, the United States has become the world's largest polluter, and at its worst, the air pollution in the United States can even be compared with that of later generations of China.

However, at the end of the 70s, the U.S. government began to pay attention to the problem of pollution, and began to make great efforts to clean up pollution, and successively promulgated several laws to clean up pollution from a legal point of view.

After seven or eight years of remediation, although it has achieved a lot of results, in the spring of 1988, the air quality in the United States is still far from being comparable to the air quality thirty years later.

It's like in Grand Island, which is already very close to Niagara Falls, but within a radius of 300 kilometers with Grand Island as the center, there are American industrial cities such as Detroit, Cleveland, and Pittsburgh, while in Canada, Toronto is only seventy or eighty kilometers away from Grand Island.

Therefore, this small island, which does not have any industry in the surrounding area, is also deeply affected by the pollution of these industrial cities.

It's as if the fog that Yang Jing saw was actually not a fog, but a unique "haze" in later generations of China.

Sure enough, when Yang Jing walked downstairs to the hall, the housekeeper Sheldon was wearing a neat housekeeper uniform, and told Yang Jing with great concern: "Sir, you'd better not go out to exercise at this time, this fog looks like fog, but it is actually a very polluted gas, and breathing in this fog for a long time can even cause serious tracheitis." ”

"Thank you for the reminder, but I'm not going out to work out. Alex, what's breakfast this morning? I'll go out into the house and exercise for a while before going to eat, about half an hour later. ”

Sheldon reported the breakfast in the morning, and led Yang Jing to an annex building connected to the main building, where the manor's fitness room was on the first floor.

There was a lot of fitness equipment in the fitness room, Yang Jing exercised in it for about twenty minutes, and after sweating profusely, he went to the bathroom next door to rinse up, and then returned to the restaurant in the main building to have a very hearty breakfast.

I have to say that it is really a great thing to have a professional housekeeper at home, at least you don't have to worry about eating every day, and Shelton housekeeper promises to arrange the daily meals properly.

After eating and resting slightly, Yang Jing was ready to take a closer look in this manor, after all, this was the first manor that Yang Jing bought that really belonged to him in the sense of his own.

Politely rejecting Shetton's request to lead Yang Jing around the manor, he began to wander around the manor by himself. Because he was reluctant to go out, the area Yang Jing visited was mainly in these five buildings.

The main building in the manor is a four-and-a-half-story building, and the other four annex buildings are only two and a half stories high, Yang Jing spent about half an hour looking at the main building, and then slowly walked to the entrance of the basement of the main building.

Most buildings in the United States have basements, and so do the five buildings on this estate.

The basement under the main building was transformed into a wine cellar, and after passing through two oak doors and going down to the basement about six or seven meters underground, a strong smell of wine immediately shocked Yang Jing.

Although the DuPont family has removed some of the precious works of art from the estate, they have not yet emptied the cellar. In fact, in addition to leaving Yang Jing a relatively complete estate, the Dupont family also left him a more complete wine cellar.

The area of this wine cellar is not small, Yang Jing estimates that it is more than 300 square meters, and there are rows of wine barrel racks in it, on which large and small oak wine barrels are placed.

Yang Jing walked all the way and found many famous wines from the eight major wineries in France, of course, some famous wines from Australia, Italy, Austria and the United States. The famous wines of this cellar alone cost hundreds of thousands of dollars.

It seems that the Dupont family should also feel that if they move these famous wines away, it will be really a little too greedy, so they left Yang Jing this complete wine cellar.

Although Yang Jing is not very interested in red wine, it is a big surprise to be able to harvest so many famous wines at once. Yang Jing even found several complete sets of Mouton from the 1945 vintage in this cellar......

PS: Bow thanks to the "very lazy fish" 100 tip.