"drop."

Just as the academicians were staring in horror at the holographic projection, a crisp reminder sounded.

Time is up.

Under the highest priority command, the probes began to slowly retreat—they needed to return to the universe at the designated time.

Seeing this scene, Lü Yongchang and the academicians breathed a sigh of relief.

Without the control of the Zero-Sum Academy of Sciences, who knows what kind of results that weak AI would come up with!

If any misleading information is sent out...

That would be a huge problem!

Fortunately, the multi-ringed building in the distance did not take any further action after issuing the identification request.

This phenomenon further reduced Lü Yongchang's worries.

At the same time, he also had a simple guess.

Could it be...?

Has the Trojan civilization completely disappeared?

Or perhaps, they escaped before the four-dimensional cavitation bubbles became microcosms?

...

Initially, Lü Yongchang planned to begin researching control schemes for the fourth direction after this exploration and data collection mission—in order to explore further, the probe must have the ability to navigate in a fourth direction.

At the same time, when entering the four-dimensional bubble again, try to perform dimensional upgrading operations on simple objects.

However, the emergence of the Trojan civilization directly disrupted the original research plans of the Dimensional Research Center.

Today, the research center not only has to study the projects that have already been decided, but also has to devote a lot of energy to studying the Trojan civilization.

Time is very tight.

According to previous estimates, human civilization now has less than 11 months left to conduct research.

then……

Under Lü Yongchang's orders, a large number of academicians from the Chinese Academy of Sciences were urgently transferred to the Dimension Research Center.

Although their understanding of dimensions is somewhat lacking, it can at least solve a lot of basic research problems.

...

Two months later.

There are still nine months until the four-dimensional cavitation disappears.

Under Lü Yongchang's leadership, the first detector truly suitable for four-dimensional space was successfully developed.

The detector, equipped with a four-dimensional drive engine, can perform maneuvering operations in four directions within four-dimensional space.

With the addition of an optimized four-dimensional coordinate algorithm, the probe's maneuverability in four-dimensional space has been greatly improved!

Meanwhile, a new type of dimensional upgrading device based on high-dimensional printing technology has also been successfully developed.

One week later.

After completing the final inspection, the third exploration mission of four-dimensional cavitation officially began.

(The first exploration lasted only a few seconds.)

This time, the well-prepared human civilization dispatched an even larger number of probes.

Thanks to the improved performance of the probe, although this exploration mission is more demanding, the estimated time required is only half that of the previous exploration.

...

Compared to the second exploration mission, the third exploration mission was a qualitative leap – more than 90% of the probes successfully returned!

Meanwhile, the probe successfully brought back a landmark object!

A successfully upgraded standard hypercube structure made of pure gold!

The low-dimensional volume constraint technique can also be applied to high-dimensional objects.

Protected by the dark matter encapsulation field, this pure gold hypercube, which leaped from three-dimensional to four-dimensional, was safely transported back to the Dimensional Research Center.

This greatly boosted the morale of the academicians—a landmark breakthrough for Updimensional Technology!

But this is not the complete technology for dimensional ascension.

Complete dimensional ascension technology means that human civilization can ascend three-dimensional objects to four-dimensional, and then descend from four-dimensional to three-dimensional!

It can't just keep going up and never going down, can it?!

In any case, human civilization cannot abandon three dimensions—it is the most stable dimension.

With the help of Lü Yongchang's seemingly superhuman quantum brain, the dimensional ascension technology, which made key progress, broke through one hurdle after another in just a few months!

The following month, a breakthrough was achieved in dimensionality reduction technology!

Under the excited gaze of the academicians, the four-dimensional pure gold supercube located within the dark matter encapsulation force field was successfully reduced in dimension.

After releasing a massive amount of energy and a large amount of matter in the form of elementary particles, the hypercube successfully transformed back into a pure gold cube!

The complete dimensional ascension technology has finally made a breakthrough at this moment!

Starting with simple three-dimensional structures, then moving to complex probes and starships, and finally to various experimental organisms...

There were failures and unexpected events along the way, but the final result was good!

Of course, the research on the entire four-dimensional cavitation did not stop during the research process of dimensional upgrading technology.

The fourth exploration, the fifth exploration...

A star field one light-year away, a star field ten light-years away...

As the area of ​​exploration continues to expand, each exploration brings new data and discoveries to human civilization, and continuously enriches human civilization's understanding of four-dimensional space.

Within this four-dimensional bubble spanning a stellar region of one hundred light-years, there exist a total of 27 star systems of varying sizes.

These star systems all contain the same multi-ring structure of giant buildings, as well as a large number of broken technological artifacts.

These are all relics left behind by the Trojan civilization.

Yes, it is indeed a ruin.

After three large-scale explorations, Lü Yongchang finally came to this definitive conclusion—the Trojan civilization is no longer within the four-dimensional bubble!

The information that those multi-ringed buildings respond to is simply the result of the operation of some automated devices.

but……

The multi-ring structure is made of dense quark structure, making it impossible for probes to enter and explore without the use of powerful weapons.

Therefore, the exploration plan for multi-ring architecture was temporarily shelved.

...

There are only 50 days left until the four-dimensional cavitation disappears!

Looking at the results of the volunteer dimensional ascension experiment, which achieved a 100% success rate, Lü Yongchang slowly closed his eyes and let out a long sigh of relief.

In the technology tree space, the branch that symbolizes four-dimensional technology has been fully lit up!

Human civilization has successfully mastered the fourth dimension!

Within the four-dimensional bubble, only one mystery remains unsolved.

[Troy Civilization Transformation Center]

What secrets are hidden within these well-preserved multi-ringed structures amidst the ruins?

What exactly happened at the source of the four-dimensional cavitation?

It's time to get an answer to all of this!

With that thought in mind, he opened his eyes again, met the expectant gazes of the academicians, and softly gave the order.

"Ten days later."

"[Earth] The entire ship has undergone dimensional upgrades, entering a four-dimensional void bubble!"

What about buildings made of dense quark materials?

Could it possibly withstand the firepower of a human fleet without any human control?!