Time flies.

As the hibernation and migration plans were gradually implemented, Dawn Star, which had been somewhat bustling, once again became deserted.

Inside the First Laboratory of the Chinese Academy of Sciences, everything was still bustling with activity.

"What about Yongchang?"

Fang Xu frowned slightly and asked in a low voice, "Are you still in the office?"

Su Yutong nodded slightly, spreading her hands with a hint of helplessness: "You know his temper."

“During this period, I haven’t been able to enter the office except when delivering meals.”

Upon hearing this, Fang Xu sighed softly, "How much time has passed..."

Before the words were even finished, the sound of the door moving came from the side.

Fang Xu's spirits lifted, and he abruptly turned his head to look in the direction of Lü Yongchang's office.

The door was open.

With a furrowed brow and vacant eyes, Lü Yongchang stared blankly at the empty corridor ahead. He staggered out of his office, his face slightly pale, muttering something to himself.

Upon seeing Lü Yongchang's appearance, Fang Xu felt a pang of panic.

At this critical moment, as the backbone of human civilization, Lü Yongchang cannot afford to be harmed!

He quickly walked towards Lü Yongchang.

"...No, this is not right."

"One is missing...one is missing..."

As the distance between the two decreased, Lu Yongchang's murmurs reached Fang Xu's ears.

One is missing?

What's missing?

Fang Xu was stunned for a moment, then subconsciously called out softly, "Yongchang?"

Lu Yongchang trembled slightly, turned his head, and cast a bewildered look at Fang Xu.

After seeing Fang Xu and Su Yutong, the confusion in Lü Yongchang's eyes dissipated considerably.

He forced a smile, forcing an awkward one: "It's you guys..."

"You..." Fang Xu hesitated for a moment, but still asked the question that was on his mind, "What did you mean by what you just said?"

"What's missing?"

Upon hearing this, Lü Yongchang fell silent, his eyes filled with even greater confusion.

"should……"

"It is a constant."

"A constant that describes gravity."

As he spoke, Lü Yongchang casually waved his hand in the air.

A holographic projection instantly appeared in front of Fang Xu.

The projection shows a dense array of extremely complex formula symbols and calculation processes.

"This is……"

Fang Xu frowned and glanced at it, feeling a throbbing pain in his head, but he still managed to follow part of Lü Yongchang's train of thought: "Gravitational field equations?"

"No, no, no..." Fang Xu shook his head repeatedly, rejecting his own judgment, "It seems a little different..."

Lü Yongchang explained softly, "There are some differences."

"Perhaps you can call it the superstring gravitational field equations."

"As the name suggests, unlike the original gravitational field equations, it is based on superstring theory."

Fang Xu's breath hitched slightly.

This completely touched upon his blind spot in knowledge.

But as the second-in-command of the Academy of Sciences, he was still clear about some basic knowledge.

Superstring theory is a type of string theory.

Both superstring theory and string theory posit that the fundamental units of the universe are not particles, but strings.

The strings move through space, thus producing various particles.

In other words, all particles in the universe are simply different vibrational modes of strings, and all matter and energy can be explained by the splitting and binding of strings.

For this reason, with the development of humankind, superstring theory has become the most promising theory to unify elementary particles and the four fundamental forces.

Perhaps sensing the thought that had crossed Fang Xu's mind, Lü Yongchang, who was staring intently at the holographic projection, murmured softly, "Perhaps, this equation can realize the grand unified theory that humanity has been pursuing for so long..."

"Grand Unified Theory?"

This time, Fang Xu couldn't contain his astonishment and exclaimed.

It's no wonder he reacted so strongly.

The Grand Unified Theory has held a mysterious attraction for all scientists since the beginning of Earth's history.

As is well known, there are four fundamental forces in the universe.

The strong interaction force, the weak interaction force, gravity, and electromagnetic interaction force.

These four forces make up the entire universe.

Therefore, theoretically, there must be a theory that can combine these four interaction forces.

This is what is known as the Grand Unified Theory.

To date, humanity, having reached the fourth level of civilization, has achieved the unification of the strong, weak, and electromagnetic forces.

But gravity remains the most mysterious force.

Fang Xu raised his slightly trembling right hand and gently "stroked" the illusory holographic projection.

On the one hand, he hoped that Lü Yongchang could bring good news to humanity.

On the other hand, he was well aware of the difficulty of the Grand Unified Theory and worried that Lü Yongchang would run into trouble on it.

With an extremely complicated expression, he murmured softly, "Yongchang, is there any result?"

"There have been some results."

Lu Yongchang frowned and raised his hand to gently rub his temples.

Excessive thinking placed a great burden on his brain.

"However, don't have too high expectations."

"This equation is incomplete..."

At this point, Lü Yongchang frowned: "If we find this constant, perhaps humanity can use it to achieve warp drive technology."

In the intervals between their conversation, familiar faces gathered around Lü Yongchang.

Clearly, they were drawn over by Fang Xu's exclamation.

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