When people walk on the road, they leave footprints on it.

When fish swim in the water, they create ripples in the water.

…

When countless people and countless fish leave their own traces on the road and in the water, a unique environment of their own will be formed on the road and in the water, symbolizing something that has happened here.

The internal environment of the physical universe located in the [three-dimensional universe] is, to a large extent, the sum of traces projected by the countless layers of space-time dimensions that form the universe as they continue to run.

It is the final manifestation of countless time and space dimensions after repeated intersection and repeated aggregation.

Such as the [four-dimensional universe] and the [two-dimensional universe].

Although they are not directly present in the [three-dimensional universe], their influence and existence always permeate the entire [three-dimensional universe], continuously interfering with the [physical rules], [energy rules], and [time rules] in the [three-dimensional universe]...

The entire universe or space-time is like a skyscraper.

Different time and space dimensions are the different floors.

Although there are huge differences between floors in terms of importance, luxury, functionality...

But no matter what, each floor always has its own meaning and function.

Moreover, their existence or absence will directly affect the integrity and even safety of the entire building.

It can directly determine whether the entire building will continue to exist.

For example, for the three-dimensional universe, where space and time are three-dimensional structures, although the two-dimensional universe is a flat space-time structure and seems to be inferior to itself, the other is its important cornerstone and cannot be ignored.

Without a plane, there is no solid, just like there is no beach without sand.

Same reason.

The [four-dimensional universe] and the higher-level [cosmic dimension], although often seem unattainable in the [three-dimensional universe] and have nothing to do with oneself, but [time], [space], [cause and effect]... the deep roots of many things actually exist in those higher dimensions. The [time], [space], [cause and effect]... that exist in the [three-dimensional universe] are largely like tributaries differentiated from rivers, and are things that depend on higher dimensions.

Therefore, a little wind and waves, a tiny movement in the deep dimension, may be a huge wave that cannot be ignored in the [three-dimensional universe], or a tsunami that is enough to destroy the world!

As for changing the ecological structure and life system, that is even simpler...

but.

Although it is easily affected by other dimensions, the [three-dimensional universe] is a [physical universe] that everyone can see and touch.

It can not only provide a place for various living organisms to live, but also provide a variety of resources.

And the survival threshold is not high.

It's not like the [higher dimensions], where people can easily disappear once they enter, and are broken into countless pieces by the flow of time and various external forces.

Or like in [lower dimensions], once you enter, you will be turned into two-dimensional or one-dimensional, without even a trace of the corpse left, and everyone can only remember it through pictures and texts.

The importance of the [three-dimensional universe] is absolute.

In many cases, they are the focus of everyone's inspection.

At present, in order to successfully create a stable and satisfactory [physical universe].

After roughly planning the level issues of each dimension, Tian Yuanli was thinking about the problem in the empty [four-dimensional universe].

She was thinking about what kind of [four-dimensional universe] could leave a projection that meets its own needs in the [three-dimensional universe], and not be disturbed by other dimensions to the ultimate goal.

In her eyes, things are not just a matter of steps, but many steps, because there are many interfering factors, she needs to make plans and lay the groundwork for various future changes in advance...

Take this moment for example. If she doesn't lay the groundwork, although the impact of the [four-dimensional universe] projected onto the [three-dimensional universe] will temporarily meet her expectations, as the other dimensions are established, those impacts will eventually be distorted into other forms by the forces from the other dimensions. She needs to look at the problem comprehensively and in advance. She not only needs to see the situation in front of her, but also think about future steps.

The situation is more or less like bartending.

She needs to think ahead of time about the final taste, color, and flavor of the wine she is mixing, and consider what impact each type of wine added along the way will have on the finished product, whether it can complement the wine she adds later, and finally be mixed into the taste, color, and flavor she needs.

"【Four-dimensional Universe】... The 【time】 and 【space】 here are complex and abstract. Time is no longer simply forward and backward, but has more complex laws of motion. Therefore, at certain times, this is an ideal operating area for various time machines. Their ability to travel through time is largely achieved by relying on the special environment here..."

When Tian Yuanli frowned and thought about something.

Occasionally, Xi Shenlian would tell Tian Yuanli various answers, opinions, and knowledge based on the ideas of popularizing science and solving problems, so that the other party could solve the problem more quickly.

For example, at this moment, after listening to Xishenlian's popular science lecture, Tian Yuanli became interested in some of the content.

"The reason why many time machines can travel through time is because of the special nature of the [four-dimensional universe]?"

Traveling through time, moving freely between the [past], [present] and [future], it's cool just to listen to it.

However, due to the interference of the [End Empire], the so-called time travel is often just a delusion. In order to maintain the stability of the [timeline], those who rashly travel through time will often be caught on the spot by official personnel and thrown into prison or even directly executed without the sentencing stage.

Therefore, although the manufacture of a time machine is not complicated, and many civilizations can successfully manufacture it when they are still jumping around in a single universe, but... it is very difficult to use that thing. Even the various rebel forces dare not use it. Once used, they will immediately change from the Nth person to be processed to the guy who needs to be processed immediately...

How should I put it…

It was probably the time of the death penalty. It would take some time for you to be processed, but you insisted on cutting in line and wanted to go N steps ahead, not wanting to fall behind...

What can the authorities do?

Of course it satisfies you.

In fact, random time travel is likely to affect other powerful people.

Maybe it won’t even be the official turn to take action.

Those who are bold and reckless will have their accounts manually cancelled by others.