Li Yueqing picked up the water cup, took a sip, then cleared his throat and continued: "Commander, the three questions you mentioned are indeed like the three mountains in front of us. But there is not a glimmer of hope of crossing."

"Let's first discuss a perfect closed ecosystem. This is not only a problem that the interstellar immigration project needs to solve, but the underground urban system of the crisis defense system research team will also face the same technical problems. I believe that if all experts on earth's biological, ecological, natural environment and other aspects work together, it is entirely possible to create a complex, complete, and recyclable closed ecosystem."

"You are right. We can get over this mountain with more effort!" Frank nodded in agreement.

"Stable energy supply is indeed a big problem. Unlike underground urban ecosystems, space castles cannot utilize abundant geothermal energy, nor will they have support from surface systems. The daily survival consumption of humans in space urban ecosystems, such as the energy required for lighting and heating, and the energy required for using artificial suns to grow food, vegetables, fruits, etc. are extremely large astronomical numbers. Therefore, we must try to develop more efficient and reliable energy. In the universe, light energy alone will definitely not be able to maintain huge social operations. Perhaps nuclear energy is the most reliable way to obtain energy at present."

"nuclear energy!?"

"Unless we can master controlled nuclear fusion technology, how can we get so much nuclear fuel!?"

"Indeed, the nuclear fusion energy contained on the earth is about 10 million times the total nuclear fission energy that can be released by the hidden nuclear fission elements. There are 45 trillion tons of deuterium in the seawater alone, which can be said to be an inexhaustible energy."

Other researchers have also expressed their opinions.

"So, it is urgent that the earth's civilization must find ways to overcome the problem of controlled nuclear fusion, otherwise the energy supply of the interstellar immigration program will inevitably be greatly challenged," Li Yueqing continued.

"Okay, we won't discuss other details of nuclear fusion technology for the time being, and we will continue to the next issue." Frank nodded and said.

"Space gravity technology is the most critical technology to ensure that humans can survive healthily in giant spacecraft or space castles. It is also the most difficult technology to solve at present. To be ashamed, I have been engaged in research on unified force fields for many years, but I have never made any substantial breakthroughs." Li Yueqing said with regret.

"You don't have to worry about it. This is a problem that Einstein has never solved in his entire life." Frank waved his hand and said.

"It would be great if Commander Naichen could find relevant science and technology in the Alpha Centauri system." Li Yueqing said again.

"You forgot that the premise of our discussion today is that Future No. has not found any science and technology we need," Frank reminded.

"Then we can only build a rotary centrifugal artificial gravity system. In this way, the technical difficulty and engineering volume of space city construction will increase sharply!"

"Well, if we follow our current technological strength, even if the space castle can be built as we wish, there will definitely be only a very small number of people who will be able to successfully leave the earth."

“Reality is so cruel!”

"Fortunately this is just a hypothesis. We still have hope in the Alpha Centauri system."

The researchers started to discuss.

"Everyone, let's further refine the plan of Space Castle."

Frank had already made a decision and began to split the relevant work to a team of experts in different fields. Although this was a kind lie, it was definitely not his style to come up with a plan to run a train with a mouthful of words.

This is not because he has no confidence in the exploration of the Alpha galaxy in Centaurus. On the contrary, this is exactly the manifestation of his strong confidence in the Alpha galaxy of the Alpha galaxy.

Meanwhile, in the old castle full of heroic masculinity, towering in the middle of a beautiful lake island on Earth.

In the banquet hall of the old castle, Just, with wrinkled faces, was still sitting peacefully by the warm fireplace as before.

The old-style banquet hall was very quiet, with only the sound of flames swaying and beating in the fireplace.

Just narrowed his eyes slightly and stared straight at the middle-aged man with all-white hair standing opposite him.

"I'm very sorry, Mr Just, our strongholds in Asia and Europe have been removed by local government forces."

The middle-aged man with all-white hair placed his hat on his chest and said nervously.

"The stronghold? Get off? Please pay attention to your wording!"

Just, with wrinkles on his face, looked very kind. A faint smile was raised on the corner of his mouth, slowly opened his eyes, and glanced at the middle-aged man with all the hair and beard in front of him.

"I'm very sorry, Mr. Just! I feel extremely ashamed of the vulgar and inferior wording just now." The middle-aged man with white hair and hair was as if he had seen a ghost when he saw Just's smile and kind eyes. He quickly bowed and apologized, "We have been shamelessly attacked by local government troops in our bases in Asia and Europe."

“Oh~”

Mr. Just narrowed his eyes again, and said nothing more, and the empty banquet hall fell into silence again.

"This" said the middle-aged man with all-white hair and beard tentatively soft, "Next, what should we do, please give your instructions to you, Mr. Just."

It was still silent. After a long time, Just opened his eyes and said calmly: Chaos, only chaos can we have more opportunities."

"confusion!?"

The middle-aged man with all white hair and beard muttered softly.

"Yes, confusion. Do you understand?"

Just asked softly.

"I understand, I understand." The middle-aged man with all beard hair and hair was answered quickly.

"Okay, you go back."

"Yes! To break the Crusaders!!"

So the middle-aged man with all-white hair turned around quietly and walked through the banquet hall and headed towards the corridor connecting the banquet hall.

As he passed the portrait of Mr. Just, the current owner of the castle at the end of the corridor.

"Ding~dong, Dingdong~"

A harp sound that was not graceful suddenly sounded, easily penetrated the quiet castle banquet hall and reached his eardrum.

The middle-aged man with all-white hair was unconsciously shocked. He subconsciously glanced at Mr. Just's portrait, then accelerated his pace and hurriedly left the old castle.
Chapter completed!