After listening, Chen Feng fell into a long silence.

He forgot to move forward and just stopped on the road with his hands in his pockets.

He looked up at the willow branches of the willow tree above his head.

The willow branches swayed in the breeze, with a few tender green buds hanging on them.

This is the last rebirth before the last time.

Chen Feng squinted his eyes, and the story of the predecessor of Xuanwuyuan told by Ding Hu kept turning over and over in his mind.

He felt deeply sad for the people who were born in this era a thousand years later.

I have tried so hard, but I still can't change anything. It's still in vain.

A hundred years ago, in the early 1920s, the level of human technology fell into a bottleneck period.

During this period, the level of technology did not improve at all for a full ten years.

Materials and energy are the foundation of all scientific progress. In order to break through the bottleneck, the world government gathered the best scientific research talents in all relevant basic disciplines at that time in one base and made every effort to break through.

Unexpectedly, this breakthrough took 83 years.

Four generations, a total of 1.37 million people, walked side by side on this extremely difficult and thorny road.

Day after day, year after year, it was difficult to move forward.

In the 29th century when medicine was extremely prosperous, the average life expectancy of the world had already exceeded 100 years.

But the average life expectancy of these more than 1.3 million scientific researchers who enjoyed the best welfare treatment was less than 60!

More than 600,000 people died of overwork before the age of 50.

They always burned out the last drop of wax when they were most energetic and their thinking was clearest.

Even when they fell on the hospital bed, they still held work materials in their hands before they died.

The last words they left behind were all to hand over the unfinished projects in their hands to their successors.

In eighty years, more than a million people fell one after another, but no one retreated.

This was a war without gunpowder, but with corpses everywhere.

In the end, mankind still won the war and made a breakthrough twenty years ago.

It took mankind another twenty years to transform the results. The external manifestation was that the Type A-3 was replaced by a more advanced spinning hammer vehicle, and the bloated and clumsy old-style individual armor was replaced by the light and efficient Qinglong armor.

Chen Feng left a lead to the reversal of Ou Junlang's fate.

The change of Ouhe Group is an amplification of Chen Feng's change for the future.

The predecessor of Xuanwu Academy, based on the foundation left by its predecessors, fought desperately for 83 years, which once again amplified the butterfly effect.

In the end, countless causes converged into one result, allowing mankind to win a technological war, complete a phased qualitative change, and form the current situation.

With Chen Feng's worldview, he really didn't understand how these people persisted.

What kind of belief supported them?

How did the world government convince scientists to be willing to sacrifice themselves in this way to deal with the endless but destined enemy?

Chen Feng was puzzled by this.

But his greatest strength is that he never thinks too much about things he can't figure out.

He can easily judge the limits of his abilities, never get stuck in a rut, and decisively give up thinking.

As for why "Bath of Fire" has become a war song for mankind, it is inseparable from this group of scientists who have taken self-sacrifice to the extreme.

The average working time of that group of people is more than sixteen hours a day. Even if they have firm beliefs and can restore their physical strength through nutrition, they are still mentally exhausted under the long-term high-load operation of the brain.

They also need some mental stimulation.

At first they used drugs and psychological counseling.

But the essence of drugs is to overdraw in advance. After enjoying the benefits of drugs, they have to pay back the debt soon.

Psychological counseling is too slow to take effect, and precious time cannot be wasted.

So what to do?

Scientists have thought of many ways and tried countless times with new technologies, but all with little success.

Later, no one knows who was the first to uncover the pile of old papers covered with dust, and found the dazzling night pearl in the sediment of countless history.

The famous song "Bath of Fire" born a thousand years ago once again resounded through the sky.

Although Zhong Lei, a famous artist who was a hundred years ago and even a hundred years ago, has never been forgotten, there are always new people in the world, and people's hearts are always impetuous. Except for a few enthusiasts who like "ancient style and ancient rhyme", others rarely listen to songs from a thousand years ago.

But this time, the first person among this group of scientists tried to see if he could find passion in the song, and then listened to "Bath of Fire".

The emotions in this song perfectly matched his state of mind of fighting, burning, and sacrificing for the survival of mankind.

At that time, his eyes were filled with tears, and he remained in a perfect mental state for the whole day.

The next day, he continued to listen.

He originally thought that the effect would be reduced, and the second listening would produce resistance and numbness due to repetition.

But no, the state was still so good.

On the third day, it was still the same.

It lasted for a whole month, and the effect was still not discounted.

This is a big man who has made great achievements in the field of acoustics in addition to the field of materials science. He conducted a comprehensive technical analysis of "Bath of Fire".

Finally, he concluded that when a person's state of mind perfectly matches the emotions in "Bath of Fire", the effect of this song will not diminish, because from the accompaniment to the singing, this song represents the ultimate sound that humans can create in a certain sense.

Its melody does not seem to be artificial, but rather it is more like the human gene that is driven by nature to evolve genes and finally combined in an incredible and ingenious way.

This person recommended "Bath of Fire" to his close colleagues, and then word spread, and it quickly became a common hobby of hundreds of thousands of people in the entire institute.

"Since then, the progress of the entire project team has been greatly accelerated, but because of this song, more people have exhausted their energy and died prematurely from overwork."

"But it cannot be said that "Bath of Fire" harmed everyone. Take a certain researcher as an example. He originally needed 80 years to complete his work, but with the stimulation of "Bath of Fire", he only took 40 years to complete it."

"Although he eventually died prematurely at the age of 60, he achieved the ultimate he could do in his life, and he has no regrets in his life. His name will also be remembered forever by mankind."

"Master Zhong is no longer a leader in the art world in a narrow sense. Her achievements and contributions can no longer be summarized by rankings."

"The works she left behind can inspire several generations after thousands of years, allowing us to complete this technological advancement. Her achievements will always shine on the monument of civilization."

"Chen Feng, have you seen that bell tower? The bell tower is engraved with the names of 1,376,432 people. The names of Master Zhong and her mentor Master Chen are at the top, and from top to bottom are all the scholars who sacrificed their lives in the base of the predecessor of Xuanwu Academy." "It

's a coincidence that Master Chen's name is exactly the same as yours. You are now the first person in human history to have 100% adaptability to coagulation serum. You are also amazing."

"It's like it's destined. Should I change my name to Ding Feng? Haha...hiccups..."

Ding Hu said this before sending Chen Feng to the Qinglongjia training compound.

Chen Feng wandered alone in the compound for a long time, and then stood in the corridor looking at the bell tower from afar.

The scorching afternoon sun was blinding, and Chen Feng turned his face away and dared not look again.

For a moment, he wanted to go to the bell tower to see his name.

But in the end he never took a step, but turned around and walked towards the Qinglongjia trainer who came to greet him, and walked quickly into the building.

There was something extra in his heart.

It was so heavy.

It almost made him breathless.