Ben Chung's home in New York during the burst of bitcoin bubb

1.

Who is Nakamoto? Why are people so curious about him? This person, who calls himself Nakamoto Tsung, said that he lost his bitcoin, not one or two, but a lot. What does 980000 bitcoins mean

so we should take a calm attitude towards bitcoin

so far, no one knows the true face of this Nakamoto. Even his so-called 980000 bitcoins are skeptical

because, generally, people who are really rich are disdainful of showing off their wealth

2. Manual shooting skills of SLR camera
1. Take close-up pictures of small still objects, such as flowers, birds and insects:
use AV file, the aperture should be f5.6 or below, the focal length should be more than 50, and try to shoot within 1m to make the background virtual
if the light is good, ISO 100, if the light is bad, ISO should be within 400<

2. Shooting people:
basically use a large aperture (within f5.6) and a focal length of more than 50 mm. The shooting distance depends on the whole body, half body and big head, which makes the background virtual. Use AV file
good light, iso100, bad light, iso400
people in motion use tracking to reflect the sense of motion (see the shooting of moving objects below for details)<

3. Shooting:
AV file, use the appropriate aperture, above F8, the focal length is arbitrary, but generally the wide-angle end has distortion, use it as appropriate<

4. Shooting night scene:
upper tripod, AV gear, custom white balance or incandescent lamp, aperture above F8, small aperture can make the light proce starlight effect, use the reflector pre rising function to rece the vibration caused by the reflector lifting after pressing the shutter; And cover the viewfinder with the square cover on the strap to prevent stray light from entering from the back and affecting the image quality; ISO 200, as far as possible to make the exposure time longer, so that some people who have no intention to walk away from the screen disappear, leaving no traces, clean the scene
for example, when taking a square with people coming and going, you can use a very small aperture of about F20 and iso100. In this way, the exposure time will be very long, and the moving figures will not stay in the photos! The square will be clean<

5. Shooting fireworks:
using shutter line and B shutter, you can shoot multiple fireworks overlapping effect<

6. Shooting things:
when the light is good: AV, the aperture size should be handled according to the circumstances; Large depth of field can be obtained by using aperture above F8, and shallow depth of field can be obtained by using small aperture
if you want to have a very dynamic effect, you can use the TV gear, the shutter is about 1 / 30, when you focus and press the shutter, the lens will follow the object at an appropriate speed, which will proce a very dynamic effect
poor lighting: we can only handle it according to our own discretion, plus use the follow-up camera<

7. Shooting running water or fountain:
using TV and about 1 / 50 shutter speed, you can shoot Satin effect. If you use too fast shutter speed, the fountain will shoot discontinuous water drops<

8. Taking photos at night:
use tripod to adjust white balance, and automatically or custom white balance; iso100-400 AV gear, aperture about F8, use slow synchronous flash, rear curtain flash mode; At this time, the flash will flash twice, press the shutter to flash once, and flash again before the end of exposure, so don't leave before flashing twice
in this way, the characters can be clear and the background neon is beautiful, so that the background will not be too dark e to insufficient exposure< No matter what you shoot, don't shoot with the maximum aperture unless you want to keep a safe shutter
2. Please use the aperture of F8 ~ F11 as much as possible when shooting scenery
3. The maximum aperture can be reced by 1-2 levels when taking close-up of people and still life
4. The safety shutter should be controlled above the reciprocal of the focal length as far as possible. The wide-angle shutter should also be more secure at more than 1 / 30 second. If the shutter is insufficient, please increase the aperture or ISO<

metering method:
1. Don't measure the light to the sky or the darkest place. Go to the middle value
2. According to your subject matter, make good use of the metering mode (balance metering, point metering, central key metering...)
3. If the light measurement is not accurate, please use AE lock to expose and lock the gray things around you before shooting
4. Try not to measure the light on white or black objects, otherwise remember to rece eV for black and increase eV for white<

EV is exposure compensation.
exposure compensation is also an exposure control method, which is commonly used in ± If the ambient light source is dim, the exposure value (such as + 1eV, + 2eV) can be increased to highlight the clarity of the picture
most of the small digital cameras adjust the exposure compensation through the menu
in the process of shooting, if you press half of the shutter, the LCD will display pictures similar to the final effect picture, focusing and exposure will start. The exposure at this time is exactly the exposure of the final picture. If the picture is obviously bright or dark, it means that the automatic metering accuracy of the camera has a large deviation, and the exposure compensation should be enforced, but sometimes the brightness displayed ring shooting is different from the actual shooting result. Digital camera can browse the picture immediately after shooting, at this time, you can more accurately see the brightness of the picture, there will be no difference. If the shooting result is obviously bright or dark, it is necessary to re shoot and force the exposure compensation
the shooting environment is dim, and the brightness needs to be increased. When the flash cannot work, the exposure can be compensated and the exposure can be increased appropriately. For exposure compensation, if the photo is too dark, increase the EV value. Every 1.0 increase in EV value is equivalent to doubling the amount of light intake. If the photo is too bright, decrease the EV value. Every 1.0 decrease in EV value is equivalent to doubling the amount of light intake. The compensation interval can be adjusted in 1 / 2 (0.5) or 1 / 3 (0.3) units according to different cameras
when the white object to be photographed looks gray or not white enough in the photo, it is necessary to increase the exposure. In short, "the whiter the object is, the more white the object is." this seems to run counter to the basic principles and habits of exposure. In fact, it is not. This is because the main body of the camera is often the center of the light measurement, and the White main body will make the camera mistakenly think that the environment is very bright, As a result, the exposure is insufficient, which is also a common problem for most beginners
because the shutter time or aperture size of the camera is limited, it is not always able to reach the 2eV adjustment range, so the exposure compensation is not omnipotent, and it may still be underexposed in too dark environment. At this time, it is necessary to consider cooperating with the flash or increasing the ISO sensitivity of the camera to improve the brightness of the picture
generally speaking, the smaller the brightness contrast of the scene, the more accurate the exposure, otherwise, the larger the deviation. The grade of the camera is high and low. If the grade is high, the metering is more accurate, and if the grade is low, the deviation will be increased. If it is a traditional camera, the tolerance of film is relatively large, and the exposure deviation will not have a big problem within a certain range, but the CCD tolerance of digital camera is relatively small, and slight exposure deviation may affect the overall effect
in a word, the adjustment of exposure compensation is determined by experience and sensitivity to color. Users must compare the image quality, clarity, restoration degree and noise size under different exposure compensation to get the best picture

note:
the aperture in Canon's manual refers to the F value. The larger the aperture, the greater the depth of field
generally speaking, aperture refers to aperture, which is inversely proportional to F. the larger the aperture, the smaller the depth of field
AV -- aperture priority auto exposure
TV -- shutter priority auto exposure
AE auto exposure
AF auto focus
AF-S -- single auto focus, the same as saf. The opposite is continuous autofocus
MAF - monitor AF, which can shorten the focusing time. The camera will adjust the focus before half pressing the shutter button, so that you can compose with the adjusted focus. When the shutter button is half pressed and AF locking is completed, the focus will be locked
ev - exposure value, which is usually used in exposure compensation
ISO sensitivity. Each difference of sensitivity is equivalent to the corresponding exposure value of aperture or shutter
brother, if you have time, go to ZhongGuanCun video forum and see the forum.

3.

Bitcoin is no stranger to a person who loves to invest. In 2008, bitcoin still appeared in our view at a very low price. But 18 years later, the price of bitcoin began to soar, and soon broke through the 10000 yuan mark. Now, bitcoin has exceeded 100000 yuan each, and bitcoin is not a real capital or material property, but a virtual currency. In the Internet, the value of such a virtual currency has been speculation above 100000 yuan. What is behind such madness

Some people also take advantage of this loophole to buy virtual currency abroad in the way of RMB, and finally cash out through trading, which is also a violation of China's foreign exchange system. Such a practice will undoubtedly lead to fire and even prison. Of course, the price of bitcoin is so high nowadays that most of the people who can afford to buy bitcoin are economic tycoons, and there will be no retail investors taking over< br />

4.

maybe he planned to disappear a long time ago, or some accidents forced him to disappear . At present, there is a lot of speculation: Nakamoto is an orderly and meticulous person. We can confirm this from his works. He's not the kind of person who suddenly makes impulsive decisions when he wakes up. He knew that once he decided to leave, he would not come back. He may have arranged his departure months or even years in advance and worked hard to meet the deadline

bitcoin has matured . On April 23, 2011, he sent his last email to Mike Hearn. He said he was going to do something else. Bitcoin reassures Gavin and others“ In the years since the formation of bitcoin, Nakamoto has well protected it. Now bitcoin can survive without having to mine, fix key vulnerabilities and introce a new core version. Maybe Nakamoto left because he had done what he should have done. When the world begins to have a strong interest in his creation, leaving behind will only tarnish his legacy and increase the risk of his destruction

5. I also hold bitcoin, but generally speaking, it is not very pessimistic. However, it can be expected that it will eventually have a peak. As for where this point is, it can be said that it has not been revealed in the past two years
actually, I am not clear about the technological development of bitcoin, but its financial logic can still be followed by rules, that is, the history of modern paper money
judging from the development history of modern paper money, it first originated from European financial banks or bank notes of early banks. Its issuance is based on the savings of users, and the holder can cash it at any time with the bank notes (exchange the bank notes for gold, silver and other precious metal currencies). However, only the banks can really grasp the information of the real reserve amount. Therefore, under the condition of asymmetric information, banks often issue bank notes in excess of the reserve amount for external borrowing and investment under the condition of good capital turnover, and recover the principal and interest when the debt matures, which can be described as a typical "white wolf with empty hands". In this process, the maintenance of banknotes depends on two aspects: one is the material basis of bank reserves, and the other is the public trust in the bank. The relationship between the two is complementary: imagine that a bank with poor credit can not attract deposits. The bank with good credit can attract deposits, and the more deposits it can attract, the more reserves it will have, The more banknotes that can be issued, the greater their financial influence, and in turn, the better their credit. However, with the deepening of social and economic control of bank vouchers, the degree and risk of bank bond bubble based on credit are increasing. Therefore, the risks to the macro economy and society are increasing day by day, and the potential risks posed by the political power authorities are also improving. As the first central bank in history, the Bank of England was born, and its significance is also in this. Legal money (current paper money) can be issued and circulated through the central bank. Of course, as in the era of banknotes, on the one hand, the issue of legal money is based on the reserve of the central bank, but it is also frequent that the issue of legal money exceeds the reserve in order to achieve a certain purpose of the government (such as stimulating social and economic development, making up the government deficit, etc.). Therefore, in the long run, inflation is an inevitable economic trend in a stable and developing normal society. It should be noted that with the development of the legal currency system, the state has stopped cashing legal banknotes in the form of legislation, and precious metals such as gold and silver have changed from the original functions of both currency (gold and silver currency) and commodity (gold and silver crafts) to the function of commodity for investment and value preservation in modern society, The legal paper money issued by the central bank has become a value symbol based on the authority's credit
therefore, we will examine the financial logic of digital currency led by bitcoin
the issue of bitcoin does not depend on a specific organization, but on the mining behavior of miners, that is to say, its issue is not controlled by an indivial organization, which determines the public attribute of the issue of bitcoin. Similarly, because of its public nature, no institution or indivial can provide reserve for its issuance. From this point of view, bitcoin is a symbol without value basis. However, e to a wide range of social participation, the public's trust in the special currency has formed the value base of its symbols. When the social participation is higher, the wider the scope of participation, the stronger the foundation, and even become a value symbol beyond a country or a region or even the whole world. Its complete credit attribute determines its complete bubble attribute. From this point of view, the risk is far greater than that of banknotes hundreds of years ago. There are two sources of credit in the inspection period. One is the public participation in investment, that is, the so-called "speculation", which shows great instability; The other is the strong belief of technology circles and some people in the currency circle in the technology behind digital currency, and this part of credit is relatively stable. From the current situation, the former constitutes the main body of the current bitcoin credit. Therefore, with the changes of government policies and investment market activities, the price of bitcoin presents great volatility. It is right to define it as investment goods rather than money
but is this bubble necessarily broken? This is not the case. As the former said, its credit base comes from two aspects, and at present, the first aspect is the main body. In the short term, the constant hype on the topic of bitcoin and the popularity of the blockchain technology behind it will further stimulate the public's participation and belief in technology, thus stimulating the improvement of bitcoin's credibility and strengthening its credit foundation. However, as time goes on, the price of bitcoin will continue to expand, and the entry threshold will also increase, which will largely limit the public participation of bitcoin. Finally, the participation of bitcoin will be limited to a small scope. That is to say, the trend of its development itself will damage its first aspect of credit base, Therefore, it is very likely that the price of bitcoin will reach the peak at a certain price in the future, forming a very high investment threshold. The price will hover at a certain high level, and its profit margin as a means of investment will be reced. Of course, if we consider the inflation of the French currency, we can think that the price of bitcoin will continue to rise slowly after a certain high. However, in the first place, credit expansion will also affect the development of credit technology in second aspects, which will probably lead to changes in its credit composition, and its price will graally stabilize, and its bubble attribute will also graally decrease, but it will not disappear absolutely, nor is it bubble burst. It always maintains the function of investment procts.
however, as in the history of banknotes, bitcoin's deepening influence on social economy will inevitably attract the attention of the authorities, thus forcing the authorities to take measures for control. The general direction of these measures depends on the degree of development of the concept and technology of digital currency, that is, the higher the degree of acceptance of the concept and technology, the more likely the authorities are to take compliance measures, so as to promote competition between legal digital currency and current digital currency through various means (economic means, financial means and legislative means), This is just like the competition between banknotes and banknotes hundreds of years ago. It can be predicted that if the value form of digital currency is recognized by the authorities and put into practice, it is likely to stimulate the overall rise of the price of digital currency in the short term to a certain extent; The implementation of legal digital currency (some people call it digital legal currency) is endorsed by the authorities, which will attract more funds and credit into the field of digital legal currency. As a result of these changes, the credit pattern of digital currency has changed and the inevitable digital legal currency has entered the circulation field, it is very likely that in addition to a few digital currencies with strong and firm credit will be transformed into "the role of precious metals in the era of digital currency", other digital currencies, especially the so-called digital currencies of ICO nature, Like the mixed banknotes issued by various banks hundreds of years ago, it is very likely that they will basically withdraw from the market and eventually form a digital currency pattern of "digital legal currency digital precious metal currency". This process will finally complete another transformation of monetary development in human history.

6. I don't know where the news comes from. You can have a look and don't believe it
I hope I can help you!

7. The generation of bitcoin is very easy at the beginning, but the more difficult it becomes later. As a founder, you can easily get a lot of bitcoin and sell it for profit after appreciation. Of course, it's just that he can do it, not necessarily because he created bitcoin to do it.

9.

Shenzhen Jubao Internet Technology Co., Ltd. is a limited liability company registered in Longhua District, Shenzhen City, Guangdong Province on May 28, 2013. Its registered address is located at b805, Yousong science and technology building, east ring 1st Road, Longhua street, Longhua New District, Shenzhen city

the unified social credit code / registration number of Shenzhen Jubao Internet Technology Co., Ltd. is 914403000703807588, which is Xie Wei, the legal person of the enterprise. At present, the enterprise is in business

the business scope of Shenzhen Jubao Internet Technology Co., Ltd. is: general business items: E-commerce; Development of network technology (excluding Internet service); Research and development of computer software; Web design; Sales and on-site maintenance of computer system integration equipment; Sales and leasing of servers; Domestic trade, import and export of goods and technology., The licensed business items are: using the Internet to operate game procts (including online game virtual currency issuance); Internet information service. In Guangdong Province, the total registered capital of companies with similar business scope is 4084445 million yuan, and the main capital is concentrated in 12434 enterprises with scale of 1-10 million and over 50 million

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