The end of technology.

"Why, what else is there?" Seeing Fang Xu's hesitation, Fan Zhenhua asked.

"Ning Zi sent me an email just now, probably arranging a research topic for me."

"Research subject? What subject."

"Erdes counts and conjectures."

"Ahem..." Fan Zhenhua coughed violently.

But looking at Fang Xu, there is obviously a lot of emotion: "Good thing. Remember, when you go to the University of Physical Education next year, do a good job, and don't miss the teaching task. But this project is still in our Yanbei International Mathematical Research Center what."

"No, Mr. Fan..."

"Don't worry, Ning Zi specially arranged this project for you, and there is a high probability that I believe you can solve it. Think about Ning's cutting method, do you understand? Do it well, maybe there will be a second Phil in Huaxia in four years' time." Here is the winner." Fan Zhenhua raised his hand and patted Fang Xu on the shoulder.

Fang Xu was stunned. He felt that Fan Zhenhua was too optimistic about this matter.

……

Yanbei Sports University, Administration Building.

Ning Zi has already returned to the room.

The computer that Lu Xiaoya gave was put aside, and Ning Zi was checking the keywords in the theoretical content about Lu Xiaoya and the merchant on the Internet.

Such as mining cards, tooling graphics cards, etc...

Soon, I probably understood the cause and effect.

To put it simply, a virtual currency called Bitcoin is very valuable. As for why it is very valuable, it is because it has extremely scarce attributes, the total amount is fixed, and it has a technology called blockchain.

The reason why the so-called blockchain technology is powerful is that each block stores certain information, as long as there is a server in the system working, the entire blockchain is safe, and these servers are called nodes; another It is to modify the information in the blockchain, which must obtain the consent of more than half of the nodes and modify the information in all nodes, so it seems very safe.

In more technical terms, data is difficult to tamper with and decentralized.

At the same time, if you want to own this kind of bitcoin, you need to use a mining machine to mine it.

The process of consuming a large amount of power resources and using GPU powerful mining cards for calculation is called mining.Those cards used for mining are called mining cards. The so-called tooling graphics cards are actually graphics cards shipped directly by the manufacturer to the mine owner. Because the other party doesn’t care much about the packaging, they simply omit the packaging to save costs...

Of course, if the brand-new tooling graphics card is similar to the graphics card sold to players, then the used mining card may look very new, but in fact, in order to maximize the profit, the miner often uses the GPU to calculate overclocking, which is basically a hidden injury. Tired.

Mining disasters refer to the fact that various virtual currencies have recently experienced a painful drop driven by the sharp drop in Bitcoin. Many mine owners have finally mined virtual currencies that cannot even be exchanged for electricity bills, so they reluctantly sold the most valuable graphics card Sell ​​it at a low price, and let a bunch of mining cards flood the market.

After roughly understanding the cause and effect, Ning Zi felt a little bit moved by the power of the Internet information cocoon.

Bitcoin has been popular many times, and he didn't even know much about it.

But at the same time, he really didn't think too much about the cognitive logic that many people believe that the various virtual currencies based on Bitcoin have value.

Consuming so many resources, doing something that has no meaning at all, and then endowing it with so-called cognitive value, even though many virtual currencies have been proven to be deceptive, and even trapped countless people, there are still people who are eager to do it. go in.

Even Huaxia officially announced that this thing is not recognized, but it still can't stop those believers.

Ning Zi thought this matter was very interesting.

How should I put it, the entire set of logic of the so-called virtual currency is based on the fact that everyone recognizes that the blockchain technology is extremely secure, and no one can tamper with the Bitcoin wallet.So money is extremely safe.

In other words, if he can prove that the money is not safe at all, and there is a way to deceive more than half of the nodes in the chain through the corresponding key at any time, it also means that he can manipulate everyone's wallet at will.The value of this thing is gone.

This happens to be Kitten's strengths, especially since this thing relies on the Internet. According to the current coverage of Cisco, Samsung, Logia and other telecom network products in those developed markets, he even has a way to make all areas The blockchain collapses once a day...

After thinking about it, Ning Zi decided to give courtesy first and then fight.

He took a screenshot of the conversation between Lu Xiaoya and the other party on WeChat, found the merchant on the platform, then sent the screenshot to the customer service, and typed a paragraph seriously: "Please follow the fake one in the advertisement on the homepage of your product. Ten fines, ten new unopened genuine graphics cards of the same type will be refunded to the account in the picture above, otherwise you will be responsible for all consequences caused!"

Soon, the customer service replied, first a question mark cleared the way.

Then he asked very humblely: "My dear, is there something seriously wrong with your mind?"

Well, seeing this news, Ning Zi knew that March had won again.

After all, this is another big fun to watch!

Chapter 122 A large-scale magic show worth looking forward to

As a customer service of the merchant and the nephew of the boss, Luo Zhicheng, of course, knows very well what the situation of the batch of products he has recently sold is.

Especially the small shop run by the old uncle, there are only two customer service, he and the other nephew of his old uncle, whether it is pre-sale, in-sale and after-sale, both are responsible.Naturally, everything is clearly understood.

At the price of 1200, I took in the graphics card from the mine owner who was short of money, and then spent a small sum of money to refurbish all these graphics cards, and sold them at a price ranging from 2000 to 3000 yuan according to different brands. A graphics card can earn 2500.

Of course, this is only theoretically possible to earn so much.Other online store expenses are also not small.For example, if you want to pay a sum of money to the platform, if you want the store to rank high enough, you have to spend money to buy traffic. In addition, you have to send a red envelope to players who have no problem using it after buying it, and then you have to spend a fortune in exchange for five-star praise.

There are also some cards that do have problems, and they cannot be repaired. They can only be damaged by hand.

But even if you take all of these out, you can probably have a net profit of about 1000 yuan for each graphics card sold.According to the calculation of 697 yuan shipped last month, that is a net profit of nearly 70 yuan.

Coupled with how much money can be brought with other products, a small shop can achieve nearly one million net profit per month.

The most important thing is that this business does not require as much investment as other genuine stores.With a capital of hundreds of thousands, the business can be done well.

Especially when this kind of mining disaster occurs and the graphics card market has not yet reacted, as long as the capital is sufficient, you can easily earn millions.

Of course, if it is the kind of graphics card that has encountered problems in the past, they will also handle it properly.Apologies, returns, exchanges, one-stop service, definitely no problem.But generally as long as it takes seven days to return without reason, it is OK.

After all, the boss of his own is a conscience, and he never accepts a mining card for more than half a year.The more black-hearted businessmen dare to accept mine cards for two years. Anyway, they accept them at a price that is almost waste. They test and pick out the ones that can be used for refurbishment. Profits are real profits.

The half-year mining card is basically no problem for seven days, and it is not a problem to use it for more than a year.At that time, even if it is found, it is normal damage.

As for the order I found today, it has already been over a month.The days of seven-day unconditional return and exchange are over, and naturally it is even more impossible to return or exchange at will.After all, it is even more impossible to admit that they sell mining cards by themselves.It was simply replaced. If it was spread out, everyone would know that their card was not so normal.

What Luo Zhicheng didn't expect was that this card had already been tested by a young man who was looking for trouble, and was disassembled into parts by the way.

He just felt that this sudden sentence from the guy opposite was very funny.

Of course, he probably never thought that Ning Ruo did it on purpose.

This is a very necessary ritual.No matter how you wait for a turnaround in the future, you can confidently tell everyone, look, no matter what bad things they did first, but the opportunity to repent has been given, and if you don't cherish it, there's nothing you can do.

That's what I did when I uploaded the beta version of the turbulence algorithm to the March forum in March of that year.

Whether it's a warning on the forum or a warning in the documentation, it's repeated and repeated over and over again not to use the beta version directly, but to activate it.But there are always people who don't listen, and there's nothing you can do about it.

So after sending that sentence and getting the answer from the customer service, Ning Yu went to work on other things.

Not going to reply any more.

Luo Zhicheng is naturally more lazy to pay attention to it. There are many people who threaten him every day. There is something wrong with this group of buyers, not all of them.

Not to mention he's been pretty busy lately.

As the summer vacation is approaching, it is the peak season for machine configuration consultation, and a lot of people come to ask questions every day.

However, before he could deal with a few people, the old uncle who had been busy outside suddenly rushed in.

"Did someone find fault just now?"

"Ah? Yes, what's wrong?" Luo Zhicheng was stunned for a while, and subconsciously thought of the sentence "At your own risk" just now.

"Show me what he wants, and it's all met."

"Who is he?"

"Fuck, the platform called just now, saying that it was monitoring that Ning Yu's login, and also found us, let us quickly solve his problem! He bought our card?"

"Ning Ruo? Is that the Ning Ruo who just won the Fields Medal?"

Luo Zhicheng is still in a daze...

If ordinary people let him take the consequences, most of them just talk about it.

But as long as anyone who has been on the Internet recently knows that what he said is at his own risk, the consequences may be serious.

Although there is currently no official news, all kinds of news from the media about a group of billionaires in related industries jumping off buildings have been swiped all over the Internet.So many big people have proved how serious the consequences are with their actions. For a small person like him, if he dares to ignore it, it is really hard.

After all, he has never experienced it before. Someone came up and posted a few pictures and said a word, which can directly alert the platform to call.

That's enough to say.

"Nonsense, who else is Ning Zhi? Hurry up and get the news out."

Luo Zhicheng quickly started the operation, and quickly recalled the chat record with Ning Yu.

"Are you stupid? Ah? I asked you if you were stupid? When the order came in this afternoon, couldn't you check the delivery address of the order first? Did you see it? It was written clearly It's Yanbei University! And don't you understand the tone? Yesterday when we had supper, we imitated this guy's tone, have you forgotten?"

"I'm..."

Luo Zhicheng suddenly didn't know how to justify it.

Sure enough, it doesn't matter if it's an uncle or not, the boss is really a boss, and he has a good level. If he really agreed to return the goods for these reasons, he would still be scolded [-]% of the time, but the rhetoric is different. .

"Why are you still stunned? Hurry up and tell people to pay according to his compensation, even if one is fined ten, tell him to refund immediately. Don't say that the platform reminded us!" The boss urged.

Luo Zhicheng also quickly began to reply: "Dear, our boss just said that the order you just sent in the screenshot is likely to be sent by us, and we are willing to accept your request for fake one penalty ten. You can ask the user who placed the order. Apply for compensation directly, and if she doesn't know how to do it, she can contact us directly."

Afterwards, they ignored the inquiries from other customers, and the two of them eagerly waited for Ning Yu's reply.

It was not until 5 minutes later that the opposite party finally replied with two words.

"late."

Luo Zhicheng looked up at the boss.

The boss was stunned for a while, then slapped Luo Zhicheng on the back of the head.

"Why are you still stunned? I was so badly hurt by your heartless! Ten times the money was refunded to that customer! I placed all the links, refunded all the orders that have not been sent, and took the store offline. !"

"what?"

"Ah what? Hurry up and come to help with packing when you're done. I'll pass the rest to others. We can't do this business!"

……

Of course, Ning Ruo didn't know that he had made the opposite seller suddenly change his mind and start a new life.

If he knew, he would probably be very pleased.

But it was really late at this time.

Of course, it's not just for platform sellers.

After understanding the entire chain of interests, Ning Yu can clearly understand that the entire chain is not cut off, and the mining card will always exist.

How could he have time to entangle with countless sellers?

So the way to deal with it is actually very simple. You only need to make bitcoin worthless, and all digital currencies with bitcoin as the core will naturally collapse.When the digital currency collapses, naturally there will be no mining bosses to continue mining, no mining bosses will mine, and naturally there will be no mining cards in the future.

I can’t sell mining cards anymore. Those manufacturers of graphics cards, whether it is NVIDIA or AMD, or those manufacturers of graphics card brands, naturally know who is their real father.

As for the punishment for sellers, it is actually quite simple.

When all this is done, let March find a way to tell everyone that this is a bloody case caused by a mining card.

At that time, there will naturally be countless people who have suddenly lost their faith and will go to those mining card sellers to make theories.

Challenging the world is often all it takes to get to the point.

And it is very meaningful to do this, just to knock those who are still hesitating by the way.

He hasn't uploaded the method to make the beta version of the turbulence algorithm shut down. If he is not sure, some people will think that he is very talkative and make wrong judgments.

This way, at least logically, it's not a waste of time.

After all, the gains from turbulence algorithms are an important part of the development.

Various investments totaling trillions of dollars can always be exchanged for plentiful fruits.

As for why it's late...

Naturally because the preliminary work has been done.

Almost at the moment when the customer service on the opposite side sent the message, the little cutie in March made another post on the March forum in the name of Ning Yu, which was still a Chinese-English version, for fear that some people would not understand it at the first time. directly to the top.

Don't underestimate Ning Zhi's post on the March forum.

After all, the last post published in the name of Ning Yu was about the turbulence algorithm.That's when it's most impactful.

The difference is probably that the title of this post looks scary.

"Bitcoin magic that lasts for ten hours. (The moderator helps Ning Zhi to send it on behalf of)"

Of course, the content of the post is even more horrifying.

“Please note to all Bitcoin holders that every hour after two hours, all Bitcoin wallets will conduct at least two Bitcoin transactions, receiving 0.1 Bitcoin and paying 0.1 Bitcoin. Fully automatic service, no need for you to do it yourself.”

"So you don't have to worry about the reduction of bitcoin in your wallet, let alone that your wallet is empty now."