April 25 digital currency plummeted

1. The value of virtual currency is reflected in "more people recognize it". At the beginning of any instry, there will be savage growth. Take bitcoin as an example, the peak price of bitcoin is close to $2W, and the current price is only about $6500
in the current situation, blockchain is not a mature technology. What the market values is the so-called prospect, and it will take time to improve and excavate it slowly. However, the collapse of virtual currency is just a return to its own value
in short, I think bitcoin will continue to grow slowly after falling below a certain price. The current slump is just that the funds attracted by the previous heat have discovered the characteristics of virtual currency (hacker attack, dealer trading, these two situations will probably only appear in the newly issued currency, which is determined by the characteristics of blockchain, in other words, Hackers may also attack bitcoin in the early stage, but the more people and nodes bitcoin enters, the lower the probability of this situation, and the more difficult it is to generate)
in addition, I think that a large number of people in China even don't know what bitcoin is, so they are ready to make a fortune with money.

2. There are several reasons for the collapse of digital currency:
1. Some unscrupulous media and we media spread false information
2. The domestic policy on digital currency is tightening, and the voice of supervision is endless
3. In recent years, countries such as Europe, America and Japan are not very friendly to digital currencies represented by bitcoin and wikilink
4. After a round of explosion, the value of digital currency instry graally returns to rationality.

3. The higher the reward, the greater the risk. The same is true for digital currency. If there is a rise, there will be a fall
(1) the long-term investment of digital currency is a kind of high-risk investment
digital currency investment is faced with policy uncertainty, technology risk, competition risk and other risks. For example, the policy changes of digital currency supervision in various countries, the possible cracking of consensus mechanism, and the risk of competition and substitution of other decentralization and legal digital currency. These risks determine that digital currency investment is still a high-risk investment in the long run
(2) there are many uncertain factors affecting the short-term investment of digital currency
in the short term, the price of digital currency is affected by more technical, news and fundamental factors that affect short-term supply and demand, and the price fluctuates greatly, with strong uncertainty and unpredictability.

4. How to say, there are many reasons for the sharp drop of digital currency in the past two days. All kinds of stock indexes, futures, gold and so on have fallen. I feel that if BTC is not affected by the new bad factors in the past two days, it will fall to about 7500. If the old fellow is going to enter the market these two days, it is OK to grasp a low point and approach. Of course, the current fundamentals are not very stable, and so on
in addition, it has nothing to do with whether you make money or not. Buying or not can make money in this wave. The question is whether you can have a correct prediction of the future. Whether there is enough psychological enrance and sufficient capital chain to deal with all the situations
finally, the risk of currency speculation is high, so we should be cautious when entering the market. It's just like losing money when the currency goes up. To be specific, it's troublesome. I can only say that only when the world economy goes up can virtual currency make money. If the world economy goes down, it can only make money if the virtual currency soars. What's more, when the world economy is not good, the bad factors are enough to make the virtual currency fall very seriously
I can't remember a sentence from Warren Buffett, which means that you should be afraid when others are greedy, and you should be greedy when others are afraid. Only in this way can you make money
I want to make money, but it's not easy to be scared. It's also not easy to live when you lose all your money. Encourage with you.

5. Objects are automatically destructed before they die. Malloc / free can not meet the requirements of dynamic objects. When creating an object, the function should be executed automatically, and the new corresponding delete should not be ignored. Therefore, C + + language needs an operator new which can complete the dynamic memory allocation and initialization< br />malloc/free; Free is a library function, not an operator. It is not under the control of the compiler, and the task of executing constructors and destructors cannot be imposed on malloc / free. They can be used to apply for dynamic memory and free memory, new. For objects of Non internal data type, malloc / delete alone must be used in pairs
malloc and free are the standard library functions of C + + and C language, and new and delete are the operators of C + +

6. To talk about my personal experience of professional stock speculation (mainly short-term), I will talk about it from the following four aspects:
professional stock speculation
First: don't operate in full position, learn to operate in short position

not in full position, because if you buy a "black goose", there is still a chance to turn over. If you operate in full position, there is no other way but to cut meat. Therefore, I always insist on the highest position of 3 / 4. If the position is full, there will be at least two or three stocks

why learn to short position? Most of the time, we can't help it. We just "get away" from a certain stock and make money. We are happy. We think that if we make money anyway, it doesn't matter if we buy it and lose it. If we lose money, we just think about how to operate correctly and earn the money back. The more we think about it, the greater the probability of buying mistakes. My suggestion is: no matter whether you earn or lose today, you must carefully study, carefully analyze and carefully consider the next position, and then it's not too late to build a position. If the market is not good today, you'd rather miss it than take it for granted to buy tickets that you think are very good technically. Many times, technology is useful when the market is rising and stable. When the market is unstable and the index is changeable, technology is a pile of "shit"<

Second, we should strictly implement our own trading discipline

what is trading discipline? Let me talk about my operation discipline: 1. Never buy st class stocks; 2. Never buy leading stocks; 3. Insist on not buying loss stocks in annual report; 4. Insist on not buying stocks with more negative news; 5. Firmly do not touch the continuous limit, and then feel that has fallen to the end to grab the rebound of the stock; 6. Firmly do not buy more than 2-3 trading stocks; 7. Stocks with a loss of more than 7% shall be resolute sold; 8. The day to catch up with the high buy, late fall below the average of the day, the next day must be sold, leaving no "face."; 9. We will not buy stocks that have increased by more than 7% on that day; 10. ... there's also a lot of discipline that you can only remember when you encounter it
professional stock trading

Third: we must have a set of stock trading technology that is most suitable for us

what is stock trading technology? MACD / KDJ / CCI / chip analysis and so on. These are all technologies. Those who are a little into the field know something about them. Here I just talk about my stock speculation Technology: every night, I will analyze all the stocks (no more than 20 stocks) in the self selected stocks, and select five votes that should be focused on the next day. Then I will make decisions on the spot to buy and sell. The low opening has the operation mode of low opening, and the high opening has the operation means of high opening. Before 9:45, I will basically "hold my horses", and after 9:45, I will make decisions, According to my own experience, I choose the most confident one to build a position. Here are some experiences: 1. The opening price is the lowest price. Then I go up all the way and slowly break away from the average daily price. There is a high point in about five minutes, but I can't break the low point in front. At this time, I'm ready to start, but it also depends on: 2. Whether the volume of transactions is large, the turnover rate, the number of internal and external transactions in real time 60 minutes line MACD / KDJ line, day MACD / KDJ line, the index of the plate, and so on, and then 3, in a certain price that they think can intervene, build a position of 1 / 4, within 15 minutes, only observe, do not buy and sell, 15 minutes later, if in line with their own judgment, continue to increase the position of 1 / 3, if you find something wrong, resolutely do not move. At this time, we must strictly abide by the principle of "prefer to miss, avoid risk"<
professional stock speculation

Fourth: stock speculation is mentality, mentality must be mature and stable

the mentality of shareholders is very complex, but our own mentality can be determined by ourselves. First of all, the mentality must be good, how good? Even if you lose money, you should be stable and earn money. You should be calm, sell low, don't sigh, buy high, don't regret, sell high, don't be proud, buy low, and don't be complacent

what is robustness? Steadiness means steadiness, calmness and control. When buying, analysis in place, immediately build warehouse, when selling, resolute. When you fall, when you wash the dishes, you must firmly believe that your judgment is normal. When you pull up, you must not be greedy. When you should do it, you should do it.

7.

bus line: Metro Line 2 → Metro Line 7, the whole journey is about 29.4km

1. Walk about 130m from Shanghai Hongqiao Station to Hongqiao Railway Station

2. Take Metro Line 2, pass 17 stations, reach Longyang Road Station

3, walk about 170m, transfer to Metro Line 7

4. Take Metro Line 7, pass 1 station, reach Huamu Road Station

5, walk about 250m, Arrive at Shanghai New International Expo Center

8.

On April 18, 2021, the global virtual money market plummeted, and the cryptocurrency market experienced the most serious slump in history. On a 24-hour basis, bitcoin has plummeted by more than 16%, Ethereum has plummeted by nearly 20%, coin an has plummeted by 17%, and reborn has fallen by 26%. Within one day, more than 620000 people were liquidated, and the amount of liquidation exceeded US $5579 million. Brian bull, CEO of coinbase, a virtual currency exchange; Armstrong sold $290 million of the company's shares, bringing the total market value of its insiders to more than $4.6 billion. In addition, alexia & middot, the chief financial officer of coinbase; Haas cashed out about $99.32 million at $388.73

it is reported that the ability of cloud computing is to split the mining machine into independent units. The mine provides mining machine computing power leasing services. Investors only need to purchase the calculation contract to & lt; Cloud mining;, Get the corresponding virtual currency. On several cloud computing platforms, it is found that the rate of return declared by each platform is not low, and some annual rates of return even exceed 100%. At the same time, cloud computing capacity is also facing huge risks. In the absence of third-party guarantee and supervision, cloud computing capacity sometimes faces huge risks