I worked as a Bitcoin Miner this year
More than 20,000 rumbling machines are densely packed on both sides of the 150-meter warehouse.
The lights were dim, and only the LED lights were flashing green._DJMINER
Among the loud noises are the sounds of blowers and air conditioners, which ensure that the warehouse does not turn into a sauna room.
Nevertheless, the sullen and restless atmosphere can not be wiped away.
This is my working environment. I am a Bitcoin miner.
After graduating from a specialized school of computer maintenance, I followed the tide of O2 O to repair computers in different people's homes. By the end of 2016, when the company burned up the money, I was unemployed.
The situation was a bit awkward, but when a friend introduced me to the miner's job, I almost thought I had misheard it.
Some of the younger people in my hometown go to work in mines, but as a college student who has come out of the nest in the eyes of my father and fellow countrymen, I feel that I have not yet reached the point where I need to sell my physical strength for survival._DJMINER
But friends quickly explained that this miner is not another miner, in fact, to do the work of repairing computers, but the location is far away in Ordos, Inner Mongolia.
Let's go. I can't take root in big cities. What's more, the salary of new jobs is higher than that of Beijing.
The first time I walked into what my colleagues called the "mine", in fact, the work place of the warehouse machine room, I was frightened by the loud roar and took three steps back.
The team leader who took me said that my job was to inspect the whole warehouse machine once a day and test each machine with a laptop in hand. If problems are found, follow the steps described in the operation manual - restart - reconnect the circuit board - unload the machine to the technical department.
Sounds like the task is simple. Work hours are three shifts, once a month rotation, this is not a problem, after all, in Ordos, this place, even if I rest according to the normal working hours, there is nothing I can do._DJMINER
But after the first day of work, the first thing I did when I rushed out of the warehouse was to buy a pair of headphones on Taobao. After several months of salary, I changed a pair of noise reduction.
The noise in the warehouse is too loud. Without headphones, when you go home to sleep, you still have a tinnitus like lying next to a machine.
At first, I didn't know why this place was called a mine.
On one break, I saw my colleagues in a mysterious circle, talking about something on a screen. I looked up and saw a zigzag zigzag graph with a few letters in English at the top, Bitcoin.
My colleagues told me that these letters were translated into Chinese as Bitcoin, and that the computer room was the place where Bitcoin was dug, so it was called the mine of digging.
But a virtual thing, why use the word dig? I'm still puzzled.
My colleagues can't explain it clearly. Let me ask the group leader. Wearing black-rimmed glasses, it looks like a team leader of a technical homemaker who has explained to many people, and he patiently told me the principle behind it:
"In fact, getting Bitcoin is more like a gold rush in the United States and Australia than mining.
Digging gives the impression that one pays for one harvest, but in the river gold is not the same. In addition to pure physical labor, we need enough patience and good luck.
That's how it feels to dig bitcoins.
More precisely, our mining is to participate in a "hunger game" held every 10 minutes, miners around the world will participate, and the prize of the game is Bitcoin.
The reason why you see the size of the mine now is that the difficulty of getting prizes is increasing.
There are many reasons behind this. For example, more and more miners are participating. There are 180 mines in China alone, and most of the new mines are in deserted places like Iceland and Russia.
But at the same time, there are fewer and fewer prizes for a single game. This is what Nakamoto imposed when it created Bitcoin. By 2012, each game will generate 50 rewards. After that, it will be halved every four years, that is to say, now in 2017, only 12.5 rewards will be generated per game. Moreover, the game has a definite end time, when the number of bitcoins reaches 21 million, it will be completely over. It should be around 2050.
That's not to say, the difficulty of each game is increasing. How do I say this? Because the game is essentially a guess of numbers (Editor's Note: To be exact, the essence of digging bitcoins is to repeatedly calculate the hash value of random strings, and check whether the resulting string satisfies the head with enough zeros, but the team leader in the article said that it was correct to guess the number as well). In order to control the speed of distribution, the number of correct answers is becoming more and more complex. Miners may have guessed the number ten times before, but they may not be right a thousand times now.
So we need to put "time is money" on the wall of our mine, because time is money here - the sooner we try, the more likely we will get new bitcoins."
At this point, the group leader suddenly stopped to look at me.
I was still trying to digest what he had just said. Suddenly, he thought I was wasting my working time.
When I got back to work, I realized that there was one more important question I didn't ask: What about the prize of Bitcoin? Why do we play such a game?
I found the answer to this question shortly after, because my colleagues taught me to look at the price map of Bitcoin.
At the beginning of 2017, a Bitcoin was worth about $1,000, or more than 6,000 yuan. Obviously, there is no reason not to participate in a game that pays 700,000 bonuses every 10 minutes.
And I soon learned the trick of the game - there's no trick.
The so-called mining algorithm, that is, the method of guessing numbers, is actually fixed and simple, and there is no room for improvement.
So there's only one way to win the game. That's to find the hardware that can execute the most algorithms in a unit time. In addition, 1 + 1 = 2, whoever owns the most hardware like this is most likely to win the game.
I also know from my colleagues that the whole mining history of Bitcoin is actually the iteration history of mining hardware.
In the age of creation, people used the CPU of ordinary computers to dig mines. It was a beautiful time when people could dig mines.
By 2010, it was found that the GPU chip produced by AMD has a specific computing component that can speed up the key steps of guessing numbers, so the GPU miner assembled by several GPUs quickly eliminated the ordinary computer miner - which is why the price of the graphics card is often not falling but rising unlike other computer hardware in recent years. It's still out of stock.
By the end of 2011, the field programmable logic gate array (field programmable gate array) miner came out, because it eliminated the unnecessary image computing hardware units in the GPU, so the efficiency was greatly improved.
That was when Eligius, the first mine, appeared. Nevertheless, the mine was still in its infancy, and miners still refer mainly to personal computers working silently around the world.
And now my daily maintenance of mining machines, has been the fourth generation, that is, ASIC chip machine. Compared with the FPGA, ASIC chip sacrifices flexibility and is built to guess digital mining, so the efficiency has made a qualitative leap again.
If a simple comparison is made, the mining speed of CPU is 1, then GPU is about 10. Although the speed of FPGA mining machine is only 8, the energy consumption is 40 times less than GPU, while ASIC mining speed is 2000, power consumption is equivalent to GPU.
So it's easy to understand why ASIC chips came out and quickly pushed the other three types of miners out of the market.
In addition, at this stage, the mine has become the main mining force. Because a mainstream ASIC chip miner, such as the Ant Miner S9, will sell for more than 10,000 yuan. At this time, to dig up Bitcoin, it will take at least hundreds of S9 nights to keep running.
The top three mines quickly became the arena for Chinese athletes. In the past few years, China has accumulated a strong supply chain and manufacturing capacity in the field of IT, which has been brought into full play at this time._DJMINER
Take BitContinent as an example, because of the ASIC chip designed for Bitcoin mining, the company quickly became the world's leader in mining industry. Over the past two years, his family has sold more than hundreds of thousands of miners, each using hundreds of ASIC chips, such as an ant miner S9 using 189 ASIC chips. Editor's note: According to media reports, in December 2017, BitContinent issued orders for 10-nm wafers to TSMC, surpassing Huawei Hess, the dominant chip company in China.
I've seen job advertisements for BitContinent before in Beijing. The graduation of Qinghuabei University, the technical director who came out to share, seems to be a rising technology star in China's chip design industry.
I heard that in the first half of 2017, the company's net profit has exceeded 1 billion yuan, so in the second half of the year when Bitcoin continues to soar, the profit level should be even more astonishing.
Time passed quickly. In a twinkling of an eye, I have been working in this mine for half a year.
Just as we were glad that winter had gone to spring and that we no longer had to shiver in the cold winter nights of the Northeast, the team leader informed us that the mine was moving.
Old employees around us were very calm about this, turned around and began to pack up, leaving us a group of new people with confused faces do not know what happened.
Later, we learned that migration like migratory birds is a mining practice. In winter, in Xinjiang and Inner Mongolia, in summer, we will go to Sichuan.
But moving tens of thousands of machines is not easy, let alone across most of China. Why?
I didn't wake up until I saw the new mine home in Sichuan.
The new workplace is next to a hydropower station, and the river runs through the windows.
For the mine, revenue = production of Bitcoin * currency - miner cost - electricity - maintenance costs and labor costs - mine depreciation costs.
Unexpectedly, the main expense is not the mining machine that I think is very expensive, of course, it is not our cheap human costs, but electricity.
In fact, as early as in Ordos, I thought the whole mine was like an electric black hole.
The team leader once mentioned that 40 MW of electricity would be burned in one hour in our mine, which is equivalent to 12,000 households. Despite the many concessions offered by the local government, billions of dollars in electricity bills are paid each year.
This is also a place with excess power, once known as "ghost city".
Is there anything cheaper than electricity there?
Yes, that's Sichuan in summer.
When we drove along National Highway 301 to Kangding, Sichuan, dozens of hydropower stations were large and small. The turbulent river water has brought a steady stream of electricity to the hydropower station. In summer, these electricity can not be transmitted at all. The State Grid has to force some hydropower stations to take two breaks and five breaks.
But when Bitcoin mines sprang up like mushrooms, the idleness of such power stations ceased to exist.
The new site of our mine is a neat row of blue plastic-steel greenhouses, built on the hills, with thousands of mining machines in each greenhouse. Hydropower station generates 7 x 24 hours of power to support the operation of the mining machine, and the owners of the mines with a large amount of money will often wrap up the whole hydropower station in order to ensure the power supply of their own mining machines.
Although the mountain area in summer is only more than 20 degrees, whenever the door of the shed is opened, a heat wave will come upon us - thousands of mining machines run 24 hours uninterruptedly, generating much more heat than those of ordinary computer rooms.
The greenhouse is equipped with air-cooled and water-cooled systems, and huge fans constantly blow heat waves to the water-cooled wall. It's not so much a wall as a curtain of wire. Cold water flows from top to bottom and evaporates instantaneously when blown by hot air. It also takes away heat.
How many degrees does this ensure the temperature in the room?
35 degrees.
So after arriving in Sichuan, the frequency of damage to mining machines has been greatly increased. I find that the circuit boards of several mining machines are baked out of macula almost every day. They can not be repaired but can only be replaced.
But the team leader told us that it was still worthwhile. Because the marginal cost of the hydropower station is close to zero in the flood season, it only takes 45 million RMB a month for the mine to buy the power of the next power station directly by contracting, which is much cheaper than when it was in Ordos.
What about the dry season? I asked curiously.
The group leader sighed, because the electricity output of the hydropower station could be five to ten times different in the two seasons, so the electricity price would be several times higher in the dry season. This is also why, in late summer and early autumn, the mines will migrate to Xinjiang and Inner Mongolia without fear of the cold.
However, I have also observed that both the head of the hydropower station and the local government are very welcome to the mine. Because we are pollution-free, green, no industrial waste or sewage discharge, and cash spot, is an ideal investment target.
At the same time, government officials can also claim that they are introducing new economic industries, the combination of big data and the Internet industry - to be exact, this statement is not a problem.
My career as a miner came to an abrupt end in early 2018.
At the end of last year, the owner of the mine decided to move to Xinjiang. Unexpectedly, just after the New Year's Day, on January 4, the Xinjiang Mutual Gold Office issued a letter asking local government departments to investigate the situation of local Bitcoin mines.
Although it did not say that it would be banned directly, the local government still took precautions to cancel the price preferences given to us by inviting investment. The standard price of the State Grid is about 0.4 yuan per kilowatt hour, while the preferential price given to the mine before is between 0.2 yuan and 0.3 yuan per kilowatt hour.
The doubling of electricity prices has sharply reduced profits at mines, and Bitcoin prices have ended the unilateral upward trend. Although our Wright coin miner is still making money, the boss decided to close the business as soon as possible, ending the increasingly risky business of this policy.
He said that more and more mines are springing up in Nordic Europe, Russia and even neighboring North Korea, where policy risks are lower and electricity tariffs are lower, while local governments are more supportive of the development of the mining industry for various purposes._DJMINER
Kcminer is in Sweden's Big Mac Mine. The local electricity bill is less than 30 cents RMB. Photo source: Bitcoin Mainland
In China, from the earliest ban on Bitcoin trading to the closure of ICOs and exchanges, to the bottom-line mining in various places, the strong pressure from regulation has made these "miners" who have earned a lot in the bull market look like chills.
As for the colleagues around me, most of them made some money by buying and selling various kinds of digital currencies. At this time, they went to other mines, and some simply put themselves into the money circle for professional investment.
Because I entered the industry too late and bought money later, I did not make a fortune on this. But long-term mine work has left me tinnitus. Doctors say that if you work in this environment for another two years, your hearing will be permanently impaired.
But that's not the key reason why I left the mine._DJMINER
In fact, I realized that working here is not even a miner. I don't understand hash values, Merkel's root, block chains and digital signatures have only one vague concept. The only connection between me and this bit coin, known as "Gold of the Internet Age", is the miner that can't be repaired.
The world of "de-centralization", "equality for all" and "arithmetic democracy" envisaged by Nakamoto has not arrived. The gap between me standing outside the miner and those who control arithmetic is only widening.
I am going to sign up for next year's postgraduate exam and re-enter the campus to learn knowledge. I want to be a real geek, not a dust miner.
It's just that the world has a one-day currency circle for one year. When I graduate, I don't know what evening this circle will be._DJMINER
The lights were dim, and only the LED lights were flashing green._DJMINER
Among the loud noises are the sounds of blowers and air conditioners, which ensure that the warehouse does not turn into a sauna room.
Nevertheless, the sullen and restless atmosphere can not be wiped away.
This is my working environment. I am a Bitcoin miner.
After graduating from a specialized school of computer maintenance, I followed the tide of O2 O to repair computers in different people's homes. By the end of 2016, when the company burned up the money, I was unemployed.
The situation was a bit awkward, but when a friend introduced me to the miner's job, I almost thought I had misheard it.
Some of the younger people in my hometown go to work in mines, but as a college student who has come out of the nest in the eyes of my father and fellow countrymen, I feel that I have not yet reached the point where I need to sell my physical strength for survival._DJMINER
But friends quickly explained that this miner is not another miner, in fact, to do the work of repairing computers, but the location is far away in Ordos, Inner Mongolia.
Let's go. I can't take root in big cities. What's more, the salary of new jobs is higher than that of Beijing.
The first time I walked into what my colleagues called the "mine", in fact, the work place of the warehouse machine room, I was frightened by the loud roar and took three steps back.
The team leader who took me said that my job was to inspect the whole warehouse machine once a day and test each machine with a laptop in hand. If problems are found, follow the steps described in the operation manual - restart - reconnect the circuit board - unload the machine to the technical department.
Sounds like the task is simple. Work hours are three shifts, once a month rotation, this is not a problem, after all, in Ordos, this place, even if I rest according to the normal working hours, there is nothing I can do._DJMINER
But after the first day of work, the first thing I did when I rushed out of the warehouse was to buy a pair of headphones on Taobao. After several months of salary, I changed a pair of noise reduction.
The noise in the warehouse is too loud. Without headphones, when you go home to sleep, you still have a tinnitus like lying next to a machine.
At first, I didn't know why this place was called a mine.
On one break, I saw my colleagues in a mysterious circle, talking about something on a screen. I looked up and saw a zigzag zigzag graph with a few letters in English at the top, Bitcoin.
My colleagues told me that these letters were translated into Chinese as Bitcoin, and that the computer room was the place where Bitcoin was dug, so it was called the mine of digging.
But a virtual thing, why use the word dig? I'm still puzzled.
My colleagues can't explain it clearly. Let me ask the group leader. Wearing black-rimmed glasses, it looks like a team leader of a technical homemaker who has explained to many people, and he patiently told me the principle behind it:
"In fact, getting Bitcoin is more like a gold rush in the United States and Australia than mining.
Digging gives the impression that one pays for one harvest, but in the river gold is not the same. In addition to pure physical labor, we need enough patience and good luck.
That's how it feels to dig bitcoins.
More precisely, our mining is to participate in a "hunger game" held every 10 minutes, miners around the world will participate, and the prize of the game is Bitcoin.
The reason why you see the size of the mine now is that the difficulty of getting prizes is increasing.
There are many reasons behind this. For example, more and more miners are participating. There are 180 mines in China alone, and most of the new mines are in deserted places like Iceland and Russia.
But at the same time, there are fewer and fewer prizes for a single game. This is what Nakamoto imposed when it created Bitcoin. By 2012, each game will generate 50 rewards. After that, it will be halved every four years, that is to say, now in 2017, only 12.5 rewards will be generated per game. Moreover, the game has a definite end time, when the number of bitcoins reaches 21 million, it will be completely over. It should be around 2050.
That's not to say, the difficulty of each game is increasing. How do I say this? Because the game is essentially a guess of numbers (Editor's Note: To be exact, the essence of digging bitcoins is to repeatedly calculate the hash value of random strings, and check whether the resulting string satisfies the head with enough zeros, but the team leader in the article said that it was correct to guess the number as well). In order to control the speed of distribution, the number of correct answers is becoming more and more complex. Miners may have guessed the number ten times before, but they may not be right a thousand times now.
So we need to put "time is money" on the wall of our mine, because time is money here - the sooner we try, the more likely we will get new bitcoins."
At this point, the group leader suddenly stopped to look at me.
I was still trying to digest what he had just said. Suddenly, he thought I was wasting my working time.
When I got back to work, I realized that there was one more important question I didn't ask: What about the prize of Bitcoin? Why do we play such a game?
I found the answer to this question shortly after, because my colleagues taught me to look at the price map of Bitcoin.
At the beginning of 2017, a Bitcoin was worth about $1,000, or more than 6,000 yuan. Obviously, there is no reason not to participate in a game that pays 700,000 bonuses every 10 minutes.
And I soon learned the trick of the game - there's no trick.
The so-called mining algorithm, that is, the method of guessing numbers, is actually fixed and simple, and there is no room for improvement.
So there's only one way to win the game. That's to find the hardware that can execute the most algorithms in a unit time. In addition, 1 + 1 = 2, whoever owns the most hardware like this is most likely to win the game.
I also know from my colleagues that the whole mining history of Bitcoin is actually the iteration history of mining hardware.
In the age of creation, people used the CPU of ordinary computers to dig mines. It was a beautiful time when people could dig mines.
By 2010, it was found that the GPU chip produced by AMD has a specific computing component that can speed up the key steps of guessing numbers, so the GPU miner assembled by several GPUs quickly eliminated the ordinary computer miner - which is why the price of the graphics card is often not falling but rising unlike other computer hardware in recent years. It's still out of stock.
By the end of 2011, the field programmable logic gate array (field programmable gate array) miner came out, because it eliminated the unnecessary image computing hardware units in the GPU, so the efficiency was greatly improved.
That was when Eligius, the first mine, appeared. Nevertheless, the mine was still in its infancy, and miners still refer mainly to personal computers working silently around the world.
And now my daily maintenance of mining machines, has been the fourth generation, that is, ASIC chip machine. Compared with the FPGA, ASIC chip sacrifices flexibility and is built to guess digital mining, so the efficiency has made a qualitative leap again.
If a simple comparison is made, the mining speed of CPU is 1, then GPU is about 10. Although the speed of FPGA mining machine is only 8, the energy consumption is 40 times less than GPU, while ASIC mining speed is 2000, power consumption is equivalent to GPU.
So it's easy to understand why ASIC chips came out and quickly pushed the other three types of miners out of the market.
In addition, at this stage, the mine has become the main mining force. Because a mainstream ASIC chip miner, such as the Ant Miner S9, will sell for more than 10,000 yuan. At this time, to dig up Bitcoin, it will take at least hundreds of S9 nights to keep running.
The top three mines quickly became the arena for Chinese athletes. In the past few years, China has accumulated a strong supply chain and manufacturing capacity in the field of IT, which has been brought into full play at this time._DJMINER
Take BitContinent as an example, because of the ASIC chip designed for Bitcoin mining, the company quickly became the world's leader in mining industry. Over the past two years, his family has sold more than hundreds of thousands of miners, each using hundreds of ASIC chips, such as an ant miner S9 using 189 ASIC chips. Editor's note: According to media reports, in December 2017, BitContinent issued orders for 10-nm wafers to TSMC, surpassing Huawei Hess, the dominant chip company in China.
I've seen job advertisements for BitContinent before in Beijing. The graduation of Qinghuabei University, the technical director who came out to share, seems to be a rising technology star in China's chip design industry.
I heard that in the first half of 2017, the company's net profit has exceeded 1 billion yuan, so in the second half of the year when Bitcoin continues to soar, the profit level should be even more astonishing.
Time passed quickly. In a twinkling of an eye, I have been working in this mine for half a year.
Just as we were glad that winter had gone to spring and that we no longer had to shiver in the cold winter nights of the Northeast, the team leader informed us that the mine was moving.
Old employees around us were very calm about this, turned around and began to pack up, leaving us a group of new people with confused faces do not know what happened.
Later, we learned that migration like migratory birds is a mining practice. In winter, in Xinjiang and Inner Mongolia, in summer, we will go to Sichuan.
But moving tens of thousands of machines is not easy, let alone across most of China. Why?
I didn't wake up until I saw the new mine home in Sichuan.
The new workplace is next to a hydropower station, and the river runs through the windows.
For the mine, revenue = production of Bitcoin * currency - miner cost - electricity - maintenance costs and labor costs - mine depreciation costs.
Unexpectedly, the main expense is not the mining machine that I think is very expensive, of course, it is not our cheap human costs, but electricity.
In fact, as early as in Ordos, I thought the whole mine was like an electric black hole.
The team leader once mentioned that 40 MW of electricity would be burned in one hour in our mine, which is equivalent to 12,000 households. Despite the many concessions offered by the local government, billions of dollars in electricity bills are paid each year.
This is also a place with excess power, once known as "ghost city".
Is there anything cheaper than electricity there?
Yes, that's Sichuan in summer.
When we drove along National Highway 301 to Kangding, Sichuan, dozens of hydropower stations were large and small. The turbulent river water has brought a steady stream of electricity to the hydropower station. In summer, these electricity can not be transmitted at all. The State Grid has to force some hydropower stations to take two breaks and five breaks.
But when Bitcoin mines sprang up like mushrooms, the idleness of such power stations ceased to exist.
The new site of our mine is a neat row of blue plastic-steel greenhouses, built on the hills, with thousands of mining machines in each greenhouse. Hydropower station generates 7 x 24 hours of power to support the operation of the mining machine, and the owners of the mines with a large amount of money will often wrap up the whole hydropower station in order to ensure the power supply of their own mining machines.
Although the mountain area in summer is only more than 20 degrees, whenever the door of the shed is opened, a heat wave will come upon us - thousands of mining machines run 24 hours uninterruptedly, generating much more heat than those of ordinary computer rooms.
The greenhouse is equipped with air-cooled and water-cooled systems, and huge fans constantly blow heat waves to the water-cooled wall. It's not so much a wall as a curtain of wire. Cold water flows from top to bottom and evaporates instantaneously when blown by hot air. It also takes away heat.
How many degrees does this ensure the temperature in the room?
35 degrees.
So after arriving in Sichuan, the frequency of damage to mining machines has been greatly increased. I find that the circuit boards of several mining machines are baked out of macula almost every day. They can not be repaired but can only be replaced.
But the team leader told us that it was still worthwhile. Because the marginal cost of the hydropower station is close to zero in the flood season, it only takes 45 million RMB a month for the mine to buy the power of the next power station directly by contracting, which is much cheaper than when it was in Ordos.
What about the dry season? I asked curiously.
The group leader sighed, because the electricity output of the hydropower station could be five to ten times different in the two seasons, so the electricity price would be several times higher in the dry season. This is also why, in late summer and early autumn, the mines will migrate to Xinjiang and Inner Mongolia without fear of the cold.
However, I have also observed that both the head of the hydropower station and the local government are very welcome to the mine. Because we are pollution-free, green, no industrial waste or sewage discharge, and cash spot, is an ideal investment target.
At the same time, government officials can also claim that they are introducing new economic industries, the combination of big data and the Internet industry - to be exact, this statement is not a problem.
My career as a miner came to an abrupt end in early 2018.
At the end of last year, the owner of the mine decided to move to Xinjiang. Unexpectedly, just after the New Year's Day, on January 4, the Xinjiang Mutual Gold Office issued a letter asking local government departments to investigate the situation of local Bitcoin mines.
Although it did not say that it would be banned directly, the local government still took precautions to cancel the price preferences given to us by inviting investment. The standard price of the State Grid is about 0.4 yuan per kilowatt hour, while the preferential price given to the mine before is between 0.2 yuan and 0.3 yuan per kilowatt hour.
The doubling of electricity prices has sharply reduced profits at mines, and Bitcoin prices have ended the unilateral upward trend. Although our Wright coin miner is still making money, the boss decided to close the business as soon as possible, ending the increasingly risky business of this policy.
He said that more and more mines are springing up in Nordic Europe, Russia and even neighboring North Korea, where policy risks are lower and electricity tariffs are lower, while local governments are more supportive of the development of the mining industry for various purposes._DJMINER
Kcminer is in Sweden's Big Mac Mine. The local electricity bill is less than 30 cents RMB. Photo source: Bitcoin Mainland
In China, from the earliest ban on Bitcoin trading to the closure of ICOs and exchanges, to the bottom-line mining in various places, the strong pressure from regulation has made these "miners" who have earned a lot in the bull market look like chills.
As for the colleagues around me, most of them made some money by buying and selling various kinds of digital currencies. At this time, they went to other mines, and some simply put themselves into the money circle for professional investment.
Because I entered the industry too late and bought money later, I did not make a fortune on this. But long-term mine work has left me tinnitus. Doctors say that if you work in this environment for another two years, your hearing will be permanently impaired.
But that's not the key reason why I left the mine._DJMINER
In fact, I realized that working here is not even a miner. I don't understand hash values, Merkel's root, block chains and digital signatures have only one vague concept. The only connection between me and this bit coin, known as "Gold of the Internet Age", is the miner that can't be repaired.
The world of "de-centralization", "equality for all" and "arithmetic democracy" envisaged by Nakamoto has not arrived. The gap between me standing outside the miner and those who control arithmetic is only widening.
I am going to sign up for next year's postgraduate exam and re-enter the campus to learn knowledge. I want to be a real geek, not a dust miner.
It's just that the world has a one-day currency circle for one year. When I graduate, I don't know what evening this circle will be._DJMINER
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