Bitcoin puzzle 300btc

1. In order to understand the technical principle of bitcoin, we need to understand two important cryptographic techniques: hash code: it converts a long string into a fixed length string, and its conversion is irreversible, that is, it is impossible to guess the original string from hash code. Sha256 is mainly used in bitcoin protocol
public key system: corresponds to a public key and a private key, keeps the private key in the application and publishes the public key. When Party A transmits information to Party B, it can use Party A's private key to encrypt the information, and Party B can use Party A's public key to decrypt the information, so as to ensure that the third party cannot impersonate Party A to send the information; At the same time, when Party A transmits information to Party B, it is encrypted with Party B's public key and sent to Party B, and then Party B decrypts it with his own private key, so as to ensure that the third party cannot eavesdrop on the communication between the two people. RSA is the most common public key system, but the lliptic curve digital signature algorithm is used in bitcoin protocol. What's the difference between cash and bank account? Bitcoin is an electronic currency in BTC. In this article, it is also used to refer to the whole bitcoin system. Like opening an account in a bank, the corresponding concept in bitcoin is address. Everyone can have one or more bitcoin addresses, which are used to pay and collect money. Each address is a string that starts with 1. For example, I have two bitcoin accounts, and. A bitcoin account is uniquely determined by a pair of public key and private key. To save the account, you only need to save the private key file. Unlike bank accounts, banks keep all transaction records and maintain the book balance of each account, while bitcoin's transaction records are jointly maintained by the whole P2P network through a pre agreed protocol. How much money is in my account address? Although the current account balance can be seen by bitcoin software, unlike banks, there is no place to maintain the book balance of each address. It can only calculate the account balance in real time through all historical transactions. How do I pay? When I pay from address a to address B of the other party, the payment amount is e. at this time, both parties will announce the transaction information to each network node, telling address a to pay to address B, and the payment amount is e. In order to prevent the third party from forging the transaction information, the transaction information will be encrypted with the private key of address A. at this time, the network node receiving the transaction information can use the public key of address a to verify that the transaction information is indeed sent by address a. Of course, trading software will help us do these things, we just need to input the relevant parameters in the software. What will the network node do after receiving the transaction information? This is the most important part of the bitcoin system, which needs to be elaborated. For the sake of simplicity, only bitcoin protocol has been implemented. In the current version, each network node will save all transaction information synchronously. There are two kinds of transaction information in history, one is & quot; Verified & quot; The transaction information, that is, the verified transaction information, is stored in a series of "blocks". Each & quot; block" Is the previous & quot; bock" The ID of each block is the hash code of the hash code of the block and the new transaction information (see an actual block). The other category refers to those who also & quot; Unverified & quot; The transaction information just paid above belongs to this category. When a network node receives new unverified transaction information (possibly more than one), it can calculate the book balance of each address at that time because the node keeps all the transaction information in history, so it can calculate whether the transaction information is valid, that is, whether there is enough balance in the payment account. After eliminating the invalid transaction information, it first takes out the last & quot; block" Then, the unverified transaction information is combined with the ID, and a verification code is added to form a new "block". It needs a lot of calculation to build a new block, because it needs to calculate the verification code, so that the above combination becomes a block, that is, the first several bits of the hash code of the block are 1. At present, the first 13 bits need to be 1 (generally, the specific method is uncertain), which means that if the block is generated by enumeration method, the average number of enumerations is 16 ^ 13. Using CPU resources to generate a block is called "gold mining", because the proction of the block will get a certain reward, and the reward information has been included in the block. When a network node generates a new block, it will broadcast to other network nodes. However, this network block may not be accepted by the network, because it is possible that other network nodes have proced the block earlier. Only the earliest block or the block with the largest number of subsequent blocks is valid, and the remaining blocks are no longer used as the initial blocks of the next block. How does the other party confirm that the payment is successful? When the payment information is distributed to the network node, the network node begins to calculate whether the transaction is valid (that is, whether the account balance is enough to pay), and attempts to generate blocks containing the transaction information. When six blocks (one direct block and five subsequent blocks) contain the transaction information, the transaction information is considered "verified", so that the transaction is formally confirmed, and the other party can confirm the successful payment. A possible problem is that I will pay the balance of address a to address B, and at the same time pay to address C. If I only verify that the single comparison transaction is valid. At this point, my way of cheating is to generate six blocks including B to B and six blocks including C to C before the truth is revealed. Because I need a very long CPU time to generate a block, compared with the whole network, the probability of my cheating success is very small. What is the motivation of network nodes to proce blocks? As can be seen from the above description, in order to make the transaction information effective, the network node needs to generate 1 and 5 subsequent blocks to contain the transaction information, and such block generation is very CPU intensive. How to let other network nodes help to proce blocks as soon as possible? The answer is very simple. The agreement stipulates that BTC will be rewarded for the address where the block is proced, as well as the Commission promised by both parties. At present, the reward for procing a block is 50btc, which will be halved every four years in the future. For example, the reward will be 25btc from 2013 to 2016. Is the transaction anonymous? Yes, and No. All bitcoin transactions are visible. We can check all transaction records of each account, such as mine. But what's different from the banking monetary system is that everyone's account itself is anonymous, and everyone can open many accounts. In general, anonymity is not as good as it claims. But bitcoin has another advantage in doing black market trading: it can't be frozen. Even if the police trace a bitcoin address, there is nothing they can do unless they trace the computer used by the exchange based on the Internet address. How to ensure that bitcoin does not depreciate? Generally speaking, in the case of equivalent trading activities, the value of money is inversely proportional to the amount of money issued. Unlike the traditional money market, the central bank can determine the amount of money issued. Bitcoin does not have a central issuing institution. Only by procing blocks can we get a certain amount of BTC currency. Therefore, bitcoin's new amount of money depends on: 1. The speed of procing blocks: bitcoin's agreement stipulates that the difficulty of procing blocks is fixed at an average of 2016 every two weeks, about 10 minutes. Moore's law of doubling CPU speed every 18 months will not speed up the proction of block. 2. The number of rewards for block proction: at present, 50 BTC is awarded for each block proced, which is halved every four years. In 2013, 25 BTC is awarded, and in 2017, 12.5 BTC is awarded. Considering the above two factors, bitcoin's currency issuing speed is not controlled by any single node in the network. Its protocol makes the currency stock known in advance, and the maximum stock is only 21 million BTC

2.

The concept of 21 million

bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's idea, open source software was designed and released, and P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system

bitcoin is not issued in unlimited quantity, which is different from most currencies. Bitcoin does not rely on a specific currency issuer. But according to the specific algorithm, through a large number of calculations. Its circulation is controlled by software algorithms. The total number is 21 million

extended materials:

generation principle

starting from the essence of bitcoin, the essence of bitcoin is actually the special solution generated by a bunch of complex algorithms. A special solution is one of the infinite (in fact, bitcoin is finite) solutions that can be obtained from the equations. Every particular solution can solve the equation and is unique[ 10] In the metaphor of RMB, bitcoin is the serial number of RMB. If you know the serial number of a note, you have the note. The process of mining is to constantly seek the special solution of this equation system through a huge amount of calculation. This equation system is designed to have only 21 million special solutions, so the upper limit of bitcoin is 21 million

to mine bitcoin, you can download the special bitcoin computing tools, register various cooperation websites, fill the registered user name and password into the computing program, and then click the operation to officially start. After completing the installation of bitcoin client, you can directly obtain a bitcoin address. When others pay, you only need to paste the address to others, and you can pay through the same client. After installing the bitcoin client, it will distribute a private key and a public key. You need to back up your wallet data containing your private key to ensure that your property is not lost. Unfortunately, if the hard disk is completely formatted, personal bitcoin will be completely lost

3. It is a type of virtual bank fraud, similar to Ponzi's fraud, which is the anti body state of pyramid fraud, also known as inverted pyramid fraud. I find Chinese people so stupid. MLM, fundraising, Mars, American land, bit,... How to be fooled next? ha-ha.

4. We know the process of information computing hash packing: transaction record, time, account number, last hash value. We also know that all calculation and storage need to consume computer resources. In Nakamoto's design, the completion of bookkeeping can be rewarded with bitcoin by the system, which is also the process of issuing bitcoin. Therefore, bookkeeping becomes mining
bookkeeping
because bookkeeping is a reward, each time you can add a certain number of bitcoin for yourself, so everyone is competing for bookkeeping, which of course leads to a problem: when there is inconsistency in bookkeeping, the system introces workload proof to solve the problem, and the rules are as follows:
1. In a period of time, only one person can succeed in bookkeeping
2. Obtain the unique bookkeeping right by solving the cryptography problem
3. Other nodes the bookkeeping results
but before the workload proof, The accounting node will do the following preparatory work:
1. Collect the original transaction information that has not been recorded in the broadcast
2. Check whether the payment address in each transaction information has enough balance
3. Verify whether the transaction has the correct signature
4. Package and record the verified transaction information
5. Add a reward transaction: add 12.5 to your address Bitcoin
if you succeed in competing for bookkeeping rights, you can get a reward of 12.5 bitcoin
workload proof
the hash value of the previous block and the current account page information will be hashed together as the original information in each bookkeeping. In order to ensure that only one person can keep accounts around 10 minutes, we have to improve the difficulty of keeping accounts. The results of hash must start with several zeros. In order to satisfy the condition, hash is to introce a random number variable
denoted by pseudo code:
1. Hash (last hash value, transaction record set) = 456635bcd
2. Hash (last hash value, transaction record set, random number) = 0000afd635bcd
if you change part of the original information of hash, the hash value will also change continuously. Therefore, when you run hash, the value of random number will change continuously, A random number can always be found so that the result of hash starts with several zeros. The node that finds the random number first obtains the unique bookkeeping right
verification
after the node successfully finds the hash value, it will broadcast and package the block to the whole network immediately, and the node of the network will verify it after receiving the broadcast. If the verification is passed, it indicates that a node has successfully decrypted, it will not compete for the current block, but will choose to accept the block and record it in its own account book for the next round of competitive guessing. Only the fastest decrypted block in the network will be added to the ledger, and other nodes will to ensure the uniqueness of the whole ledger
If a node has cheating behavior, it will cause the node of the network to fail the verification, give up its packaged block directly, and cannot be recorded in the general ledger, then the consumption cost of the cheating node will be in vain. Therefore, miners consciously abide by the consensus protocol of bitcoin system, and ensure the security of the whole system
it's like you go to the construction site to move bricks. After moving bricks for one day, the contractor asks you how can you prove that you move bricks for one day?

5. Hub75, do you buy outdoors or indoors? It's OK to use SCM to proce a few simple characters. But if you want to have grayscale or something, SCM will not be able to proce characters. If you want to have more colors and less IO ports, you can't do it. If you want to play simply, you'd better buy lingxingyu's 801 receiving card, and the Gigabit network card will be good, Otherwise, it's really troublesome. If you want to find information, you can take a look at the website of Taiwan accumulation. There are Chinese information of 5020 or 5026 chips on it. Maybe your screen is not such a chip, but they are similar things. Just look at one. The information is easy to understand at noon!

6. Shimano group was founded in 1921 with its head office in Osaka Prefecture, Japan. After more than 80 years of development, its subsidiaries are located in 17 countries around the world, and become a multinational company specializing in manufacturing and selling bicycle parts, fishing gear, snowboard and golf procts<

contents

Introction
brief history of development
stage of development
bicycle club
Proct Introction
edit the introction of this paragraph
Shimano
Shimano, as a famous brand of bicycle parts, is well-known all over the world. The reason why Shimano has such a wide range of fans and reputation around the world is mainly e to its functional system design idea to guide the proction of bicycle parts. Shimano broke the previous static design idea of taking indivial parts as the core, boldly adopted the dynamic design method of taking functional parts as the purpose and the comprehensive function of bicycle system as the key link, established its unique functional system design idea, and created many revolutionary procts. Constantly promoting the reform and evolution of bicycle. Shimano group was founded in 1921 with its head office in Osaka Prefecture, Japan. After more than 80 years of development, its subsidiaries are located in 17 countries around the world, and become a multinational company specializing in manufacturing and selling bicycle parts, fishing gear, snowboard and golf procts< In 1921, Shozaburo Shimano founded Shimano iron and steel plant and began to proce Shimano flywheel. In 1931, it began to export Shimano flywheels. In 1940, it was reorganized into a joint stock company and renamed Shimano Steel Co., Ltd. In 1951, it was renamed Shimano Instrial Co., Ltd. 1956 started proction of Shimano transmission. In 1957, we started to proce the ximano 3-speed rear flower drum with internal gear wheel. In 1960, cold forging technology was developed. The handlebar controlled three speed flower drum was developed for the first time in Japan. In 1965, Shimano united America company was established in New York, USA. In 1967, Skylark transmission and automatic connecting devices were proced. Shimano Yamaguchi joint stock company was established in Yamaguchi Prefecture of Japan in 1970. The newly established fishing gear Department began to proce fishing rods and reels. In 1972, Shimano Europe was established in Dusseldorf, West Germany. Released Dura-Ace series of bicycle racing parts. The shares are listed in Osaka's second unit. Shimano Singapore company was founded in 1973. The company's shares are listed in Osaka and Tokyo at the same time. In 1974, Shimano sales association was established in California, USA. In 1978, the Sales Office of fishing gear department was established in the United States. In 1980, Shimano ax series of aerodynamic racing system components was published. 1981 published "1-2-3 shift" gear conversion system. In 1982, we published the series of mountain bike components, Deere XT. Sis and new Dura-Ace series were published in 1984. Shimano cup Fishing Series opens. In 1986, Shimano America company and Shimano sales company were merged to form a new Shimano America company in Irvine, California. In 1989, his royal highness Naruhito visited Sakai headquarters in Japan. Shimano Malaysia parts company was established in 1990. In 1991, Shimano bicycle development center was established in Sakai, Japan. The name of the company was changed to Shimano Co., Ltd. P.T. Shimano Batam was founded in Indonesia. In the same year, Shimano re-ex cross Japan MTB competition opened. And published mountain bike parts Shimano XTR series. In 1992, Shimano Bicycle Center and Bicycle Museum were opened in Sakai, Japan. In the same year, Shimano Kunshan bicycle parts company was established in Kunshan City, Jiangsu Province, China. In 1995, Shimano stock company directly took over Shimano Yamaguchi and Shimano fishing gear sales company. The auto-d rear flower drum with automatic shift was published in 1997. In the same year, the physical sports department was established. In 1998, the company passed ISO 9002 certification. Build Italian manufacturing plants. In the same year, ra ace bicycle racing parts series was published for the 25th anniversary. 1999 Shimano aviation transmission system. In the same year, the road racing wheel group was published. 2000 passed ISO14001 / 9001 certification. The concept of digital integrated intelligent bicycle parts was published. Shimano was incorporated into the publisher of ETS. Bertin in France. In 2001, Shimano Czech Republic branch and Shimano Shanghai Branch were established. Shimano Taiwan Branch was established in 2002. In April 2003, Shimano Group invested 15 million US dollars to establish Shimano (Tianjin) bicycle parts Co., Ltd., or STJ, in Tianjin, China, covering a total area of 84916 square meters< In April 2003, STJ was officially registered in Tianjin. In October 2003, STJ factory started construction. In July 2004, STJ phase I project was completed. In October 2005, STJ passed the quality, environment, environmental protection, environmental protection and environmental protection standards at one time Certification of three systems of occupational health and safety in December 2005, STJ phase II project was started to build
Edit this section of bicycle club
Shimano
Shimano bicycle club was founded on May 1, 2002, with the purpose of absorbing the majority of bicycle lovers, expanding mass bicycle activities and actively promoting national fitness activities, To improve the direction of cycling in China, the club has more than 2500 members from all over the country. Since its establishment, the club has organized several large-scale activities. Actively strive for the support of all sectors of society, closely rely on the majority of car fans, and strive to develop their own mass and professional advantages; To plan and undertake competitions, training and exchanges at all levels as the carrier; To expand skills, fun, adventure based "fever level" movement as the focus; Constantly expand and improve the scale, level and influence of mass cycling<
Edit this section of proct introction
Shimano proct grade division mountain bike parts grade from high to low XTR, saint, XT, LX, Deere, Alivio, acera, Altus, tourney road bike parts grade from high to low Dura-Ace, ultegra, 105, tiagra, Sora, 2200, a050 XTR: an art representative of off-road vehicle parts XT: unremitting pursuit of high-performance mountain bike kit technology LX: home High energy kit for outdoor car deore: a high-performance kit that brings real cycling fun. I'll take the 2003 dental disc + middle axle as an example to talk about the difference: of course, above deore are hollow crank arm plus spline (one of deore's models is square hole) plus 9-speed. The following mainly talks about the difference. XTR: the crank arm is made of cast hard aluminum, the discs are made of 7075 aluminum, the chain wheel nuts and screws are made of 7075 aluminum, the length of the legs ranges from 165 to 180mm, and there is a model for every 2.5mm, that is to say, there are seven kinds of lengths, with an average weight of 797g. The middle shaft and the tooth plate are integrated. The other models are not integrated. XT: the crank arm is cast aluminum, the small plate of the middle plate is not 7075 aluminum, the nuts and screws are also ordinary aluminum, the leg length has five specifications, and the average weight is 872g. LX: on the basis of XT, the middle plate is made of aluminum, the small plate is made of steel, the screw is made of stainless steel, the nut is made of steel, the leg length is only 170 mm and 175 mm, and the average weight is 906 G. Deore: the medium and small plates are all made of steel. The large plate is made of one kind of steel and one kind of aluminum. One model of the central shaft is not hollow (UN), and the other model (ES) is the same as the LX and above. The average weight is 972g ~ 1093g. Another example is flywheel: XTR with 9 sections: the big four discs are titanium, and the small five are steel. The surface treatment of the gear plate is made of Ti / Ni-P light alloy base, weighing 240g. XT: all the plates from XT down are steel plates, and the surface of the gear plate is chrome plated, weighing 300g. LX: the base is no longer light alloy, and the surface treatment of the gear plate is & quot; Pearlescent surface treatment;, Weight 330g deore: the surface of the tooth is plated with Ni, and the weight is 358G. XTR is to make things into high-quality procts at any cost. In fact, it is not necessarily not rable, but sometimes the former is considered to a certain extent in terms of high performance and rability. XT is a good example of eliminating luxury goods: for example, it doesn't use titanium or special materials, and it still uses materials with reasonable prices. LX is a short version of XT, which is lazy in some places. Deore is enough.

7. If you have a good idea, you will have a good idea. If you don't have a good idea, you won't be happy and you won't be sober for a long time
the reason why many people drink (whether they are alcoholic or not) is to change their bad mood

this way of drinking in order to get rid of the painful feeling is called "evasive drinking". Thousands of A.A. members know that when we are in high spirits, we often like to drink. If we look back on our past drinking experience, most of us can see that we are used to celebrating by drinking when we are in a high mood

based on the previous drinking habits, we put forward another suggestion: pay special attention to the happy and jubilant time. When everything goes well, it makes us feel like we may not be alcoholics. Please note that! At that time (even after years of waking up), the idea of a drink seemed perfectly natural

we forget the sad memory of drinking in the past for the time being, so it should not be a big problem to have only one drink. Then we began to think that drinking was not so serious or even harmful. For normal people, a glass of wine is certainly not a problem. But from our past drinking process, we can clearly conclude how serious the impact of this seemingly insignificant glass of wine on people like us will be

sooner or later, we will convince ourselves that it's OK to drink one more drink, and then we want to drink two more... Happy drinking is especially attractive for us. We have good reasons to celebrate, and we are in a group of happy relatives and friends who are drinking or can drink, Their drinking behavior seems to bring us a certain degree of social pressure, encouraging us to join the ranks of drinking
perhaps because of our traditional social customs, we often have the habit of drinking in weddings and funerals

therefore, even if we realize that we no longer need to drink, the deep-rooted idea still remains in our hearts. There are many ways to get rid of the social pressure of drinking. Please refer to Chapter 26 for advice. We have to remind ourselves that there are no exceptions that allow us to "get rid of" alcohol addiction

no matter we have any reason or no reason at all, at any time, once we start drinking again, our disease will immediately worsen again

for some of us, the urge to drink seems to be stronger when we are happy, regardless of whether we are on special festive occasions or whether we are under the influence of social pressure

this feeling can happen at the most unexpected moment, and we may never understand the exact reason

we now know that when we have the idea of drinking, we don't have to panic. After all, in today's modern society, it's natural for anyone to have the idea of drinking, especially for us "heroes in wine"

however, the idea of drinking a glass of wine does not necessarily mean the desire to drink. There is no need to feel depressed or afraid. We might as well regard it as a warning to the risk of alcoholism, which reminds us of the harm of alcoholism

danger is forever, even when you feel incredibly good
one A.A. member recalled that when alcohol addiction fell to the bottom, there was an idea that lingered all the time: "I firmly believe that disaster is coming to me," she explained. "Every morning, almost my first thought is always, God! I don't know what kind of blow I'm going to encounter today. "

when someone knocks on the door, she is quite sure that nothing good will happen. She thought that all the letters she sent were bills and bad news, and there was always a sense of disgust when the phone rang

many of us are quite familiar with the situation where most of our mental energy is consumed by negative emotions. We all remember that in the period of heavy drinking, the mind was full of depression and darkness

this situation may be purely caused by alcohol depression, once the resial alcohol in the body is removed, the problem will be solved naturally. But some of us may continue this sensitive, melancholy mode of thinking until we detect it and pull it out carefully

no specific medicine can make us carefree and happy from now on. We can't assume that all the difficult challenges are meaningless, and we can't deny that each of us has to deal with the mountain of urgent problems from time to time. But depression, like other kinds of pain, does us great harm

however, we don't drink now, and we have a certain control over our own thoughts. Our consciousness is no longer vague, we have a broader field of thought

the mode of thinking we choose is crucial to our mood swings in the next 24 hours, so we may decide that today is a sunny day or a gloomy day

because our excessive drinking in the past has such a profound impact on our thoughts, it is very worthy of our in-depth and careful inspection to readjust our thinking habits, so as to use our thinking ability in a better way

the following examples may not be entirely applicable to you, but even if the events are not the same, you may feel the deja vu emotional ups and downs that happened to them

although some parts exaggerate to emphasize their views clearly, and some parts may be insignificant at first sight, after repeated verification, we find that even simple and small changes can lead us to a good starting point for rehabilitation

when our beloved child falls down accidentally ring the toddler stage and is injured, we will immediately check whether he is injured, whether the injury is serious or whether he is frightened

at this time, we are faced with a choice. We can scream hysterically because the child is hurt or frightened; Or we can keep calm and look at it rationally, thankful that it has not caused more serious harm. When our 90 year old grandfather died of a long illness, we faced the same situation

we can choose to insist that the only thing we can do is to show extreme grief and sadness, inlge in this kind of emotion, and maybe drink again; Or we are not only deeply sad, but also think that he has lived a long, beautiful and happy life, and we do care and honor him all the time. Now his illness and suffering are finally over. If we use this as an excuse to hurt our body, it will be very difficult for us to get his approval

when we finally have the chance to go to a place we have been looking forward to for a long time, we can complain about the inconvenience of the weather and accommodation, or miss the good old days. In fact, we only have days or weeks off. Or we can be grateful that we finally have the chance to realize our dream, which adds a good memory to our hearts

in response to any more optimistic, positive and positive remarks, we will notice that we tend to blurt out "yes, but..." a friend who is lucky, or looks quite young, or participates in the charity publicity activities of political and business celebrities, etc., will ince us to make an almost hostile and acrimonious response: "yes, But... "Is our habitual
mode of thinking beneficial to ourselves or others? Can we make good things simple? Can we just praise rather than belittle? People who try to quit smoking know that there are two possible outcomes: (1) constantly complaining about how difficult it is to quit smoking, "it still won't work this time" and "you see, damn it, I light another cigarette."

or (2) when we want to smoke, we should enjoy the deep breathing without smoke smell and freedom. We are glad that we haven't smoked for another hour. Even when we start to smoke again unconsciously, we encourage ourselves to put out the cigarette. Fortunately, we don't smoke the whole cigarette and only have cigarette butts

if one of us goes to buy a lottery with the first prize of 50000 yuan, he will win the prize of 500 yuan. Our sensitive mindset is easy to be teased, and wise people can easily find a balance. They don't need to feel aggrieved because they don't get the biggest prize. We can constantly find opportunities to make similar choices. Past experience makes us more convinced that maintaining a grateful attitude is not only beneficial to our physical and mental health, but also helps us to maintain a sober life

we will be surprised to see that as long as we make some efforts, it is not difficult to develop a grateful attitude. Many of us are reluctant to try to change. Although most of us are forced or forced at first, the effect is obvious. At the beginning, it's hard to resist the sarcastic and sarcastic tone that we are used to, which is unavoidably disturbing and confusing

we may have to hold back twice in a row in order to squeeze out a mild and positive word, which we call a kind expression

but it will soon become very easy to do, and will become a strong and pleasant support force in our rehabilitation process

we will understand that life means to enjoy, and we can enjoy life well

looking back on the history of drinking, we are controlled by a negative and negative emotion, which is also a behavior pattern that we must learn to change

if we can make some changes in our words and deeds, we can bring dynamic changes, and then adjust and improve our mood

for some reason, we often spend a lot of time thinking, paying attention to
and talking about other people's faults and problems (no matter whether other people's situation is true or not, it has nothing to do with the ideological transformation we are going to carry out now)

for some people, at first they began to try this change with a bious and indecisive wait-and-see attitude. We assume that others may be right. Before our rash judgment, we stop arguing, listen carefully and wait for the result. Whether our views are correct or not is not the focus of this chapter

no matter what the conclusion is, at least we have temporarily got rid of the framework that we always insist that we are always right and superior. When we are able to face our faults calmly without being bothered, we can find that sincere expression of "I don't know" can rejuvenate us, and saying "I'm wrong, you're right" can refresh us

we relax and accept new ideas with an open mind and gratitude. Top scientists are especially interested in new evidence that can prove their theories wrong

8. Bitcoin trading is not protected by law in China, but it is not illegal
at present, there is only "Notice of the Ministry of instry and information technology of the people's Bank of China, China Banking Regulatory Commission, China Securities Regulatory Commission and China Insurance Regulatory Commission on the prevention of bitcoin risk" in China, which defines the risk situation of bitcoin, and there is no penalty problem.

9. I think it's fake. 20000 yuan, 300 yuan per day, so the daily interest rate is 1.5%, so protect your principal.

10. Now bitcoin has fallen, but the price still reaches 75000 RMB
300 bitcoin is equivalent to 22.5 million RMB