No one could prove the existence of parallel universes. For something that couldn't be proven or falsified, as long as you believed it existed, then it existed. Therefore, there might be a universe where Earth was safe and sound, and Tang Yue and Mai Dong could live a peaceful and happy life.
Old Cat said so.
It also said that if the number of parallel universes was really infinite, then Tang Yue and Mai Dong would meet more than once. They would meet at every Planck time in the entire timeline.
"Then … will they have children?" Mai Dong asked softly.
"If your fertility is normal, then you will obviously have children."
"Not us …" Mai Dong corrected, trying to keep her tone calm. After all, no one could see her blushing face on the space station. "It's them."
"They are you," Old Cat corrected her.
"Then … how many children will they have?"
"How many children do you want to have?" Old Cat asked.
"I said it's them, it's them, it's them, not me." Mai Dong took off her mask and buried her face in her spacesuit. Her cheeks were burning in the cold air.
Old Cat was baffled.
Mai Dong in a parallel universe wasn't Mai Dong?
"Alright, then how many children do Mai Dong and Tang Yue want to have?
Miss Mai Dong, as a representative, please answer this question. "Old Cat changed his tone. The Mai Dong here referred to all the Mai Dong in the parallel universe.
"Two, a boy and a girl."
Mai Dong answered. "It's best if they are siblings. That way, the brother can protect the sister. Siblings are fine too … but the sister will bully the brother."
Tang Yue sat on the side and sneered.
Too naive.
It was obvious that Mai Dong didn't have a brother.
Who told you that the brother would protect the sister?
Just like him, Tang Yue, he never protected his sister.
It was always his sister who protected him.
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"Forty … forty … forty."
Old Cat muttered behind the monitor.
"What forty?" Tang Yue raised his head and asked.
"40 for the small hammer, 80 for the big hammer."
Old Cat placed its paw on the computer monitor and hooked its finger. "Tang Yue, I've sent you the completed posture equation of motion. Calculate it with a pen and paper."
Tang Yue was startled by the densely packed letters and operators on the screen.
"Why don't you just let the workstation do it?"
Tang Yue asked as he took out a large stack of draft papers from the drawer. "You just have to type on the keyboard."
"Because I don't trust it."
Old Cat worked on the desk. "This workstation has been out of order recently. It keeps giving me wrong results. It's stupider than you."
"I'll pretend I didn't hear the last sentence. You want me to calculate such a complicated thing with a pen and paper …" Tang Yue opened the pen and scanned the formula on the screen. "If you want to kill me, just take a fruit knife and stab me."
"Oppenheimer also used a pen and paper to calculate the critical mass of uranium fuel."
"That's Oppenheimer!"
"But you're standing on the shoulders of giants."
"I'm standing on the shoulders of giants, but it doesn't mean I'm taller than giants."
Tang Yue copied the formula on the screen onto the draft paper and began to calculate it step by step. Although the formula was complicated, it wasn't an IQ test. It was just a continuous matrix transformation. It didn't exceed the content of a university mathematics course. It was a pure skill of writing.
"Speaking of this, I suddenly remembered an old Soviet joke. It said that there was a rule in hell that whoever killed the innocent in the human world would be drowned in the blood of the victims in hell. One day, God visited hell and found that the blood only reached Belial's legs. God was puzzled, so he asked him why the blood only reached his legs when he was alive.
Belial replied, "Because …"
"Posture equation of motion."
Old Cat sent the new equation and glanced at him. "Note that the q is the posture quaternion vector."
"There are three Euler axis directions. The last one is the Euler corner, right?
Clear. "
Tang Yue nodded. "Let's continue with the joke. God was puzzled, so he asked Belial why the blood only reached his legs when he was alive.
Belial replied, "…"
"There are two simulation results here. The first one ignores the impact of the flexible solar panels on the spacecraft. The second one considers the impact." Old Cat sent over a large number of terrifying numbers and graphs.
"Why are you giving me this?"
Tang Yue stared.
"Check it again and see if there's any problem."
"The problem is that I don't understand it. Do you think I'm Ramanujan … that I can become a master by self-studying?"
Tang Yue flipped through the page, frowned, and continued to calculate. "Let's continue with the joke. Belial replied," Because … "
"Because I'm standing on the shoulders of Stalin." Old Cat shook his head. "Why are you telling me this tirelessly?
This old political joke is as old as your grandfather. "
Tang Yue was stunned. "What?
Standing on the shoulders of Stalin? "
Old Cat was also stunned. "Isn't that so?"
"It isn't."
Tang Yue shook his head. "Belial replied," Because you didn't add anticoagulants to the blood, he's standing on the coagulated blood cells. God only sees the upper layer of the serum. This was taught by our middle school biology teacher when he was in the blood and serum class. "
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"Listen, this is a strategy. The method and control steps for rendezvous and docking with non-cooperative targets. We all know that the Joint Space Station is currently out of control. Under such circumstances, docking will undoubtedly be extremely difficult."
Old Cat sat on the edge of the table and rested his elbow on the monitor. "So we need to set up a docking point at a suitable distance and let the Tianzhou spacecraft observe and analyze the space station from this distance."
"How far do I need to maintain?" Tang Yue's pen moved like a snake as he calculated.
"I don't know. I'm still calculating." Old Cat shook his head. "Is Miss Mai Dong there?"
"She's in the no-signal zone."
"The Tianzhou cargo spacecraft is an unmanned spacecraft. For an unmanned spacecraft to dock with an out-of-control spacecraft, the most important thing is self-adaptation. Our remote interference has a delay, so it's definitely too late."
Old Cat continued, "The entire plan is divided into three parts … The first is the analysis and judgment of relative motion. This is the prerequisite for the rendezvous. The Tianzhou spacecraft must accurately analyze the attitude, orbit, and motion of the Joint Space Station and make a prediction."
"Can it do that?"
"It can't."
Old Cat replied, "So we'll take care of this, including the problem of the landing site. We have to make the spacecraft land as close to Kunlun Station as possible. But once the spacecraft enters the atmosphere, the landing site can't be changed greatly, so this needs to be considered in advance."
"It's too complicated." Tang Yue put down the pen in his hand and was silent for a moment before he finally said.
Even an outsider like Tang Yue could understand the complexity of this plan.
"Complicated isn't scary."
The Old Cat said, "No matter how complicated or messy the knot is, it's still a simple rope. As long as you find the right direction, the problem will be solved. And this is the simplest of the three parts."
"And the second part?"
"The second part is automatic control."
Old Cat said, "You studied mechanical and electrical engineering, so you know the basic principles of automatic control. Negative feedback — Tianzhou has to adapt itself to the Joint Space Station's attitude and movement. Self-adaptation is the key to everything. It has to adjust itself according to the data from the microwave radar and docking sensors, and it has to correct itself repeatedly. This requires extremely high precision, extremely, extremely high precision, extremely, extremely, extremely high precision."
Old Cat used a total of six words to emphasize the harshness of the conditions.
"Can it do that?"
"I can't."
"Therefore, it's best we settle this. Ladies and gentlemen, let's go all out with the workstation. Dismantle the chassis and prepare enough ice to lower its temperature. Even if it were to die in the end, it wouldn't be able to wipe out its crimes. No, it would be a worthy death."
"The third part is rendezvous and docking, or in other words, capture."
Old Cat said, "If the first two steps are successful, then in the final stage, Tianzhou will capture the Joint Space Station, dock with the latter, and pick up Miss Mai Dong. Then it will quickly depart, adjust its attitude, and enter the atmosphere again. The whole process will be controlled by the computer. It has to be done cleanly and in one go. There can't be any delays. Even the slightest delay will cost the lives of both spacecraft."
"Can it do that?"
"It has to do that."
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(Author's Gossip: Even Sister Zhi Ling is married. The clouds have changed.)