After the complex testing process was completed, the antimatter reactor in the planetary fortress began to power it.

It was another lighting up.

A huge sphere of light appeared inside the high-purity vacuum laboratory within the planetary fortress.

The computing power test began quickly.

As soon as the testing began, Lü Yongchang's expression changed slightly as he closely monitored the data.

Something's not right.

The computing power has indeed improved significantly, but the improvement is still far from reaching the level of the Imperial Fortress's mainframe.

Zero quickly completed the test of the "new home" and presented the results to Lü Yongchang.

As Lu Yongchang had predicted during the testing, things turned out exactly as he had.

Compared to the first experimental machine, the computing power of the second experimental machine has achieved a qualitative leap—its computing power even surpasses that of the ultra-large optical quantum computer array at Zero Destiny.

However, considering energy consumption and floor space requirements...

This is a completely unprofitable deal!

It can't even be loaded onto a starship!

Moreover, after making a simple estimate, Lü Yongchang was surprised to find that the architecture of the fortress's main brain actually had a negative impact on the computer's computing power!

Simply put, if we scale up the size of the first experimental machine proportionally and stack more computing processing units inside...

Its computing power might even surpass that of the second experimental machine!

Regardless of what the other researchers thought, Lü Yongchang's face immediately turned ugly when he saw the test results.

There's definitely something wrong!

There must be some key technology hidden in the main brain of the Tenth Empire's fortress!

...

With a gloomy face, Lü Yongchang locked himself in Mo Zeyang's office, and the atmosphere in the R&D center was extremely tense.

Mo Zeyang led a group of academicians, blankly flipping through the experimental and observational data, trying to find the hidden key technology.

All the data is normal, without the slightest error.

He even checked the architecture of the fortress's mainframe several more times.

It is indeed a proportional reproduction.

Even the angles at which the materialized rays intersect are exactly the same.

Mo Zeyang, sitting in the chair, suddenly felt lost.

What exactly went wrong?

...

The office door slowly closed.

Sitting in his chair, Lü Yongchang stared at the small, azure-blue holographic projection above his desk, lost in the same confusion as Mo Zeyang.

What exactly went wrong?

suddenly.

A flicker of doubt appeared in Lü Yongchang's bewildered eyes, and an inexplicable guess formed in his mind.

To verify his hypothesis, he quickly closed his eyes, and his consciousness entered the technology tree space.

The tech tree space remained as peaceful as ever.

The mottled background remains like a riddle, trying to reveal some earth-shattering secret to Lü Yongchang.

But at this moment, Lü Yongchang's mind was not on the background of the riddle-maker.

His gaze quickly fell on the bottom of the technology tree and then swept upwards along the main trunk.

As the viewing height increases, the bright cursor gradually becomes sparser.

More and more dim areas came into Lü Yongchang's view.

Normally, he would have been drawn to these half-hidden cursors, but now, his attention was completely drawn to a cursor hanging in the middle of the tech tree.

The cursor is bright.

This means that human civilization has completely mastered this technology.

The words on the cursor made Lü Yongchang instinctively gasp.

Although the consciousness itself doesn't have the concept of "drawing out cold air," it still performed this action based on the habits of a human body.

The text on the cursor is simple: [Optical Computer]

But it contains a great deal of information.

The term "optical brain" is easy to understand; it refers to the optical computer that human civilization is currently researching with all its might.

But... how did he already get lit up?!

How could he possibly be illuminated?!

Human civilization has mastered optical computer technology, which has been certified by the technology tree system. In other words, those two experimental machines with limited computing power improvement are the prototypes of optical computers, or optical brains.

As Lü Yongchang focused his attention on the cursor, a faintly visible thin line extended from it, stretching straight towards the top of the sixth-level civilization.

Over there, there was a thick fog.

Without any hesitation, the thin thread pierced directly into the mist.

The fortress mastermind of the Tenth Empire...

It's obvious that this is a technology that only a level seven civilization should possess!

...

A few days later.

The office door slowly opened, revealing Lü Yongchang's pale face, which was pale from overworking his brain.

"professor……"

Seeing this, Mo Zeyang, who was still trying to find the cause, quickly got up and went to help Lü Yongchang, who was swaying. Then he shouted loudly to the researchers next to him, "What are you standing there for?"

"Hurry up and find Dr. Wen..."

No, no need.

Lü Yongchang took a deep breath and broke free from Mo Zeyang's support: "The computer has been successfully completed."

"Wh...what?" Mo Zeyang was stunned for a moment, then his eyes lit up with ecstasy. "You found the reason?!"

“No.” Lu Yongchang’s eyes dimmed slightly as he shook his head. “What I mean is, we succeeded a long time ago.”

"The Imperial Fortress's mainframe is computer technology belonging to a Level 7 civilization."

Upon hearing this, Mo Zeyang's smile vanished visibly, and his lips began to tremble slightly.

"This...how could this be..."

For a pure scientific researcher, Lü Yongchang's words were tantamount to a death sentence for his past efforts.

Not only Mo Zeyang, but the other researchers in the R&D center were also devastated by this bad news.

"Then, then..." Mo Zeyang became somewhat incoherent, "We...then should we give up?"

"Yes, yes, that's the technology of a level seven civilization..."

"We should..."

"Should what?" Lü Yongchang straightened his body with force, and a faint blush appeared on his originally pale face. "Give up? Impossible!"

"All the observational data can prove one thing."

"The basic technology used by the fortress's main brain is not much different from the optical computer we developed."

"But its performance is hundreds or even thousands of times greater than that of a level six civilization's optical computer!"

"This is an opportunity!"

"An opportunity to enrich human civilization!"

Lü Yongchang's eyes grew brighter: "I believe that human civilization can overcome this difficulty."

"Are the barriers between civilizations truly impossible to break down?!"