Mysterious recovery, the world is unscientific

Chapter 101 The Box Selection Paradox
Of the five boxes, only one has a key in it.

Each of the five people chooses one, and four of them will be locked in the box, and it is impossible to get out from then on.

If they don't choose, they won't get the key at all, can't open the single-plank bridge, and can only be trapped to death in Yangguan Road.

This is obviously a paradox of box selection.

The only solution to this paradox is to sacrifice four people and achieve one.

Zhang Qian and the five of them thought about it carefully, and immediately thought of this truth clearly.

The old man who guarded the way said with a light smile, "Five, have you made up your mind? Are you going to choose or not?"

"Grandpa, can we have a good discussion?"

"Okay, I'll wait for you." The Taoist old man responded calmly.

Then he sat cross-legged behind the five boxes, closed his eyes and waited quietly.

Zhang Qian looked at Zhang Tiande and Tian Cuihua, "Second Grandpa, Second Grandma, what should we do now?"

"This box-picking paradox is not unsolvable. It has an optimal solution, which is to sacrifice four people and achieve one."

"Yes, if we want to go out, I'm afraid we have to sacrifice four of the five of us." Zhang Tiande and Tian Cuihua replied one after another.

Wang Hao reminded at the right time, "Seniors, since you all said that, I have to pour cold water on you."

"What do you mean?"

"This box-picking paradox, when you think about it carefully, is actually completely unsolvable."

"Why?" Zhang Tiande asked.

Wang Hao raised his finger and pointed at the old man who guarded the way, "You have all overlooked one point, that is, this old guy may be lying. He may not be sure of the five boxes. There is no key in any of the boxes. He is just trying to deceive the five of us." Go open the box and shut us in."

"Yes! How could I have overlooked this point."

Zhang Tiande was taken aback at first, then he stretched out his hand and slapped his forehead, completely regaining his senses.

The three of Zhang Qian also nodded quietly, admitting that what Wang Hao said was correct.

Wang Hao said again, "In my opinion, the key to finding the key right now is not in selecting boxes at all."

"I think so, I'm afraid there's something wrong with it." Zhang Qian followed suit.

But at this moment, the Taoist old man sitting cross-legged behind the five boxes opened his eyes and laughed loudly, "Little brother, you are wrong, there is indeed one box in the five boxes, it is Hiding the key."

"How do you prove that?"

"If you don't believe me, I can open the five boxes one by one and let you see which box the key is hidden in."

The old man who guarded the way replied, he immediately stood up, walked to the front of the five boxes, and stretched out his hand to open the lids of the boxes one by one.

Zhang Qian and the other five took a closer look, and they found that there was a pitch-black key in the jade box in the middle.

The old man who guarded the way reached out and took out the black key, and showed it in front of the five people.

"See? This is the black key to open the single-plank bridge, so I didn't lie to you."

"This……"

Wang Hao was choked speechless.

The old man who guarded the road turned around, closed the five boxes again, then held the black key with his hand, and shook it twice in mid-air.

When he opened his palm again, the black key had long since disappeared.

Looking at Zhang Qian and the other five, he smiled again, "Now I have hidden the black key back in a box again, and you can discuss it carefully whether you want to choose it or not."

After finishing speaking, the old man guarding the way walked back to the five boxes and sat down cross-legged as before, closing his eyes and meditating.

Zhang Qian and the others had a hard time this time.

If the Taoist old man is not lying, then the best solution right now is to sacrifice four people and achieve one.

But the question is, which four people will be sacrificed, and who will be achieved?
Seeing that the five people were helpless again, the old man who guarded the way laughed again.

"Five, the optimal solution you mentioned is wrong."

"What do you mean?"

"You might as well think about it, if the first person who came up to choose the box was lucky enough to directly choose the box with the key, wouldn't all five of you be saved?" the old man reminded.

Zhang Qian shook her head and sneered, "You will make the first person to choose so lucky? Do you think we are stupid?"

"I've always been fair and just."

"We don't trust you."

"Then I won't say more, you guys think about it slowly." The old man who guarded the way replied with a smile.

When the words fell, he closed his mouth and said no more.

Zhang Tiande really had no choice but to step forward and volunteered, "I'll go up and choose first! I have to set an example for you young people."

"Second Grandpa, don't be impulsive! Think again!"

"It's useless to think about it. Why don't you go up and try it first? What if I'm lucky and the first one is selected?"

"This……"

Zhang Qian was speechless.

Zhang Tiande immediately walked to the five boxes, and began to pick them up and down.

Tian Cuihua put her mouth close to Zhang Qian's ear, and said in a voice that only the two of them could hear, "Don't worry, your second grandpa is very thieves, he must have his own ideas if he dared to be the first to choose, we just need Just watch carefully."

"No, we were all wrong, Second Mistress, I think I know the optimal solution to this paradox of box selection."

As soon as Tian Cuihua finished speaking, the string in Zhang Qian's brain suddenly seemed to burst open, which gave her an idea and thought of the best solution.

Tian Cuihua looked at her in surprise, really not believing it.

Zhang Qian quickly waved and shouted, "Second Grandpa, come back! I'll go up and choose first."

"Ah? Why are you crazy? This is not a joke. If you choose the wrong one, you will be locked in and never get out."

"Second Grandpa, trust me." Zhang Qian said firmly.

Zhang Tiande stayed where he was, half-believing and half-doubting.

Zhang Qian ran up quickly, stretched out her hand and pushed him back.

Back beside Tian Cuihua, Zhang Tiande asked with a puzzled face, "What did you just say to her?"

"I didn't say anything! I just told her not to worry. If you dare to be the first to choose, you must have your own ideas."

"Then why is she so confident?"

"I don't know her." Tian Cuihua muttered angrily.

Zhang Tiande tilted his head and looked at Wang Hao and Huang Shanshan, all three of them looked puzzled, completely confused about the situation.

At this moment, the Taoist old man opened his eyes, stared at Zhang Qian and said with a smile.

"Little girl, you have to think carefully before choosing, otherwise if you choose wrong, you will be the first one locked in the box, and you will never be able to get out again."

"Grandpa, do you know a famous saying in our Yangshi?"

"What famous quote?"

"Only children make choices. In the world of adults, there is never the word choice."

A confident smile appeared on Zhang Qian's beautiful face.

The smile on the old man's face disappeared instantly, and a bad feeling appeared in his heart.

(End of this chapter)