I hand over the Wanjie trading system to the country

"Ah, is that so!" Chuno was a little dumbfounded. "I feel that in the novels I have read, the crystal nuclei of zombies are all in the brain."

"It's the same with the novels we read before." Xiaoba said with a smile.

"Ah, you... read zombie novels at such a young age?" Papa Chu asked.

The four Mu Mu also looked older than Brother Mo, about 25 or 6 years old.

Xiao Qi and Xiao Ba looked like they had just grown up, and Mu Mu looked like he was in his early 20s.

Father Chu was a little surprised.

If you do this calculation, 8 years in the last days, 8 years ago, Xiao Qi and Xiao Ba were only in their early 10s.

He remembered that Chunuo should have read all kinds of picture books when he was 10 years old.

"Ah, I forgot it was more than 30 years ago." Xiao Ba smiled embarrassedly.

"Let me introduce formally. My name is Fu Wen, and my nickname is Xiao Ba. This year..." Xiao Ba paused for a moment with a smirk on his face, "I'm 39 years old this year."

"He's the youngest in the team."

The four members of the Chu family:?

"3...39 years old?!" Chuno looked at Xiaoba with disbelief written all over his face.

"I feel like you're lying to me!" Chuno's face was brightly written with big characters - "Don't think of me as a fool!"

"Really." Xiao Ba smiled, "I swear, I never lied to you.

"After the outbreak of zombies, apart from the awakening of various abilities, the biggest change is the return to youth."

"Return to youth?" The four members of the Chu family asked in surprise.

"In other words, the body's functions have been purified." Mumu explained from the side.

"That's right, apart from being able to awaken abilities, our bodies all have changes to varying degrees."

"It's not just that our appearance has changed, our physical fitness, strength, etc. have all evolved to a great extent."

"When I look younger, I can't help but feel younger, haha."

When Xiaoba spoke, she really looked like a young girl, full of energy.

The four members of the Chu family couldn't help being envious. Rejuvenation and youth are the dreams of many people. No, it should be said to be wishful thinking.

"Actually, I have a very curious question." Chu Cheng couldn't help interjecting, "It is said that in 2035, the average life expectancy of human beings will reach 95 years?"

"No, it seems that you arrived in 45 years?" After Xiao Qi finished speaking, he looked at Mu Mu uncertainly, and Mu Mu nodded.

"That's right, it's 45 years old that came in 95 years." Mo Ge, who had been silent all this time, added.

"At the end of '43, there was a huge breakthrough in medical technology, and we defeated cancer."

"Wow, as expected, cancer will be defeated in the future!" Chuno cheered in surprise.

"Then... if the average life expectancy is 95 years old..." Father Chu paused, "At what age do you retire?"

"80 for men, 75 for women." Mo Ge said.

Father Chu: I don't really want to live to be 95 years old.

"If the heart and brain of the zombie must be intact, then the number shouldn't be so many?" Chu Cheng thought that the conditions for mutation were different from what he knew, so he asked.

"No." Mo Ge continued to popularize science, "Although the food of zombies is still internal organs, they mutate very quickly."

"After being infected, the fastest 5 seconds and the slowest 10 seconds will definitely mutate."

"Unless you are attacked by a group of zombies, you rarely lose your brain and heart at the same time."

"And our population base is much larger. The year before the end of the world, the total population of China has exceeded 35 billion."

"Then your power upgrade is to absorb the crystal nucleus?" Chuno's question was more like verifying the content she read in the novel.

"No need." Mu Mu shook his head, "It's natural to upgrade the ability, and it will become more and more powerful after you are proficient."

"Then what is the use of the crystal nucleus?"

"It's mainly used as a power source." Xiaoqi raised his hand and said, "It's also used as currency circulation."

"Power source?" Mother Chu was more interested in this.

"Yes, about half a year after the zombies appeared, the base has developed a new type of power furnace, which can be driven by crystal nuclei."

"I brought a portable stove, which uses crystal nuclei as energy."

"Auntie... no, sister, do you want to see it?" Xiao Qi asked while looking at Mother Chu.

Mother Chu: ...

"May I ask, Xiaoqi, how old are you this year?" Mother Chu asked after a long silence.

"I'm 41 this year, Mumu is 49 this year, Brother Mo... 56." Xiao Qi told everyone's age like a bean in a bamboo tube.

"Wow, I can't see it at all!" Chuno marveled, "I always thought you were younger than me."

"Ordinary people without supernatural powers won't become younger?" Chu Cheng asked.

"No." Mu Mu shook his head, "It must be a person with supernatural abilities."

On the other side, Mother Chu has already begun to study the small stove that Xiao Qi took out, which uses the crystal nucleus as the power source.

This stove looks about the same as the cassette stoves commonly used for camping in 2023.

It's just that the position of the gas tank has become a square groove, and above the groove is a lid that looks a bit like a pressure cooker lid.

"The crystal nuclei on our side are not graded like in the novel, there is only one kind, so it is calculated by weight."

"The size of the crystal nuclei of zombies is completely different, and some zombies have only one, and some have several."

"And some are big but don't have much energy, and some are small but last a long time."

"How much energy each crystal nucleus can provide is very random and not fixed, so the gap is still quite large."

"In the past, everyone used crystal nuclei directly, but it was very inconvenient. Later, the base developed compression technology."

"The specifications of each base are unified, and the size and energy contained in each specification of the compressed crystal nucleus are the same."

"The base will charge a certain fee for the compression, which fluctuates between 10% and 15%."

"You can also find a private one, the fee is lower, but it is not very stable, and some will explode."

"The crystal nuclei after compression are collectively called power blocks."

"But you can also use the crystal nucleus directly, so every tool that needs a crystal nucleus as a power source will be equipped with a crystal nucleus slot."

"Generally, for a stove like this, a 50g power block can be used for a month."

Xiaoqi talked eloquently and carefully, and even demonstrated it. He took a special small pot and boiled a pot of water on the spot.

Boil water nearly half as fast as in 2023.

The flames when burning are not warm orange, but somewhat transparent white, which looks cold, but very beautiful.

There was no smoke, and there was no smell. As for whether there was anything else, the four members of the Chu family did not know.

"It's almost time to rest, we should leave." Mu Mu looked at the time, it has been a long time.

"Boss, can you sell us some of your family's food?" Mu Mu got up and said.

"But we don't have the currency on your side, can you exchange it with other things?"

The reason why Mu Mu dared to ask was because Chu's mother was very interested in crystal nuclei, so she wanted to give it a try.

"Yes, yes, but we are not sure if you can take it away." Chuno said with a frown.

When Zikang and the others left last time, they took nothing with them except what they ate, and all the gauze used to bandage the wound was left behind.

Chuno doesn't know now whether it's because they don't give enough money, or the supermarket doesn't allow them to be taken out.