Programming in the novel [serial 14] the moon bends in the yuan universe

Chapter 14 Don't trample the moon over

Let's say , There are more and more tourists on the moon , What happened , As one falls , all sorts of strange things .

If it cannot be solved in time , There will be bigger problems .

The last blockchain payment problem has not been fundamentally solved , The Moon Society receives more and more complaints .

But this algorithm problem , To get subversive 、 Completely solve , It takes time .

As the saying goes , One wave rises after another , Recently, tourists have raised some big questions .

Almost every tourist asks such questions , So it's called a big problem .

Complained that , Many concepts on the moon are unclear , It is believed that there are “ fish in troubled waters ” disrelish , It is also thought that there may be something fishy , Say something new 、 New words are “ grandstanding ”,“ unrealistic ”,“ Deceive tourists ” Tools for .

The lunar society decided to hold a press conference to solve these problems , Invited Deng Yang, President of the alien Academy of Computer Sciences , Soyuz scientist mausky , Charles scientist Frank , Red scientist ban Zi attended the Q & a conference together .

It seems that this time it is “ the real thing ” 了 , Want to do something big , It should be more than “ thunder ” Big , It seems that there will be a “ rain ” Of .

A reporter asked ：“ Please explain what is mapping 、 Hash 、 binding ？”

Ban Zi, a red country scientist, said ：“ Like idioms ‘ point at one but abuse another ’, Pointing ‘ Mulberry ’, What I scold is ‘ pagoda tree ’, This is mapping .”

Ban Zi continues to explain what hash is , As a result, a tourist interrupted and said ：“ I'm not from the red country , I don't know what this idiom means , Don't say this or that , Just say mapping ？”

Ban Zi added ：“ Numbers 1、2、3, Corresponding to the letters A、B、C, This is mapping ; If 1、2、3, Correspond to more letters ABCDEF、GHIJK、LMNOP, This is hash ; Mapping or hashing relationships are fixed , Binding .”

Frank, a Chinese scientist, added ：“ It's like saying code words , No one knows the agreement behind the code , I don't understand , This Convention is mapping . There is also a mapping , The code words are very simple , The agreement is very complicated , It's hash , I hope you can understand .”

Hook up and think , I don't know if I understand , No one mentioned it anyway , I believe it's a paradox , It's very rare .

Another person asked ：“ What is a public key 、 Private key 、 digital signature ？”

Soyuz scientist mosky said ：“ Do not explain the concept in theory , for instance ,A、B Are two large prime numbers , use （A-1）x（B-1） obtain C, Find an integer D, bring C、D Mutual primes （ Namely C and D The common divisor is 1 It means ）, that D It's a public key ; Find another integer P, bring (PxD) Divide C more than 1, that P It's a private key . A digital signature is a encrypted password hash .”

Didn't wait for scientist mosky to finish , The whole venue was in an uproar , And someone said ：“ I thought only the scientists of the red country could not understand , I didn't expect what you said , Not only can't understand , It also makes people's head ache . Are you an alien , You are muttering to yourself , Entertain yourself ？”

Scientist mausky is dejected , There's really no way to take these people .

Or frank, a scientist in China, has a way , He added ：“ Understanding may be ambiguous . Let's say , You take the public key to encrypt the numbers ‘123’, If there is no private key , You can't see it again ‘123’ 了 . But see what you can't understand ‘XXX’.”

It is obvious that someone at the meeting has been quite impatient , Shouted ：“ Please tell me , What is the metauniverse ？”

Deng Yang, an alien computer expert, said ：“ This is an old problem , At the beginning of the alien metauniverse , It is specially explained . There have been so many days , I believe many tourists have already visited , You should probably understand what the meta universe is .”

Suddenly a voice screamed and shouted ：“ You don't understand , Still unwilling to say , What old problem , What is a general understanding , Can't you say it straight ？ Are you an alien , Did you make a detour ？”

Deng lamb listened , Stop , Don't speak . Roughly meaning , You say first , I'll talk about it after that .

Frank, a Chinese scientist, said ：“ Computer expert Mr. Deng Yang , It's really an alien , Let him finish speaking .”

Deng Yang continued ：“ Meta universe , Just put on a pair of glasses , Just get into pictures or movies , See people or things in pictures or movies , It's the same as the real one . You can also talk with the characters inside 、 Walk 、 Sleeping and going to the bathroom .”

Anyway? , There are still some people who are not happy , Another person retorted ：“ At the beginning of the alien metauniverse , what did you say? ‘ Please come to metauniverse , There can be lawlessness here .’, No one dares to say anything about it now .”

Deng Yang continued ：“ That's when you enter the game role . Even if it can be lawless , It also depends on ability , It can't be anyone .”

I only heard a sigh of disappointment :“ That doesn't mean you didn't say .”

Another person said in a hurry like catching a train ：“ Go and play , Don't you understand it all , Tangle with him . I want to ask a more important question ：‘ Noble bitcoin in blockchain , Go downstairs and buy some bread , Can I pay ？’ It's the same as the traffic jam paid last time , Wait until the transaction is successful , Just got the bread , I'm afraid ‘ Lily is cold ’,‘ I wait until the flowers are all gone ’.”

Ban Zi, a red country scientist, said ：“ If you will 、 If you are not afraid of trouble , Yes. . Using blockchain currency does not mean that other currencies are not used , All in bitcoin . Bitcoin is not everything , It's just one of the payment methods . Buy a bread downstairs , Or ordinary payment faster 、 More appropriate , Ordinary payment , You'll see .”

The press conference is in full swing , An alien handed a note to Deng Yang, a computer expert . It seems that I want to say something .

original , Aliens are going to announce a new algorithm to replace mining . Last time, the trader was responsible for bookkeeping , But it records other people's transactions , If you cheat , Then your own transaction is also a fraud .

And there is a record of fraud . Bitcoin is issued as a gift to all investors , With interest 、 Dividends are similar .

Deng Yang said , Instead of mining, the second version of the algorithm is ： In all people who participate in bitcoin transactions , Select the one most likely by the network , The network automatically thinks that it is the most suitable bookkeeper , Network random recommendation qualification , Replace mining to obtain bookkeeping qualification , According to the trading volume , Determine how long , Recommend such a qualified bookkeeper .

Recommended qualified person , You can enjoy the same treatment as mining . It is mainly to avoid the problem of large energy consumption wasted by mining .

Deng Yang just announced this , Another person worded , I don't have bitcoin , Love how to pay , Just how to pay . Don't talk about things here , Okay? ？

This person is long winded , He said that he would also like to ask a question that everyone is concerned about ：“‘ In the meta universe , Made a lot of money , How to realize and transfer out , Don't always put it in your blockchain , On the surface, it seems that it has nothing to do with you , But in fact , I heard that your bitcoin account is much more than that of ordinary people , Who can supervise whether you play high-tech pranks , The inside job steals from itself ？’”

It's getting more and more complicated , Hook up and think ：“ This question is so difficult to answer .”

At this time , Frank, the scientist of Chaguo, stood up and said ：“ Currently, the blockchain recorded by bitcoin , People who trade or do not trade , You can't see anything or specific in the blockchain , You can only do something reasonable and legal step by step , Others can only sigh . As for the realization of bitcoin , Is to sell bitcoin , It's OK to deal according to local laws and taxes . As for whom you want to sell , At what price , That's your personal right , We can't interfere .”

Someone in the audience couldn't sit still , Rush directly to the front desk , Grab the microphone and talk ：“ Say something in your heart , What you said is not what I want to care about . What I want to ask is ‘ Isn't it enough to toss around on the earth ？ Why bother with the moon , A good moon , Isn't it good to leave you a little dream ？ I think the moon will collapse sooner or later by you people , Trampled over , Look at the metauniverse , Then the universe will fall apart , No more .’”

Someone nearby stops the speaker , Grabbed the microphone , Let's not go on .

But Soyuz scientist mausky motioned to return the microphone to him , Let him go on .

however , The man who just spoke said he would not continue , But I added ：“ There's nothing to say , I don't want to say . If you have conscience , Clean up quickly , Let's go to the moon , Don't keep thinking about staying in the sky .”

As for scientist mosky, he made such a move , It's not surprising to tick .

First , He has always opposed the creation of oases on the moon , Have been pursuing to return the moon to its original face , Give everyone a sunny day 、 The bright moon , Also give you all kinds of legends and dreams about the moon .

This point , The tourist who spoke just now , It also represents the attitude of scientists like mausky .

Others asked ：“ In the metauniverse ‘ Sink infiltration silo ’,‘ Number twin ’,‘ Cloud computing ’ These things ”

Deng Yang said , yes , we have . Although some metauniverses are not specially designed ‘ Sink infiltration silo ’, But it will put you into the whole metacosmic container , be called ‘ Sink infiltration silo ’.

Because once in the metauniverse , It feels the same as the real world , You at this time , It's the same as sinking into the environment filled with meta cosmic air .

Number twins , It is the real world depicted by digitalization , Equivalent mapping in the metauniverse , Or mirror image .

Cloud computing , It means a lot of 、 System calculation , Describe everything in the world through calculation , This is my understanding , You may have a better understanding , I hope more people are closer to the truth .
obviously , Everyone is quite satisfied , Just go on , Don't delay others who want to know something .

Frank, a Chinese scientist, said ：“ I want to ask something else , Please talk , Don't take the important words , Will only put in their own hearts , Speak up , Let everyone help you solve your doubts .”

At this time , An old man stood up and said , I came to the moon , Just to finish a dream , When I was young, I wanted to be an astronaut , I didn't fall for .

I've been looking forward to being like those astronauts who landed on the moon , Take a walk on the moon , I slipped a hundred or more bays this time , Very satisfied .

I am very grateful to you , Although I can't play metauniverse , But I feel as energetic as young people .

Looking forward to a bright future for the world , Don't think too absolutely about anything , Don't be flawed , Don't pursue and explore .

Don't let everyone speak out , Give up creating and accepting new things , The world is always developing .

I have never seen , Because of fear ‘ disease enters by the mouth ’ And those who give up eating . We should move forward bravely , never yield in spite of reverses .

Only fearless brave , To reach the top of the mountain ‘ The hills are small ’.

The old man finished , There was a big round of applause , prolonged ……