On February 17, the spot price of bitcoin, the cryptocurrency, broke through US $50000 for the first time on February 17 (Beijing time) against the background of continued buying by investors and support from Payment institutions. Bitcoin prices peaked at $50623.23 in the morning, then fell back to within $50000, up more than 60% this year, according to coindesk, a market service. Recently, Tesla, an American electric vehicle manufacturer, said it had invested $1.5 billion in bitcoin. MasterCard said it planned to support some digital currencies on its payment network this year. Bank of New York Mellon also announced that it would provide digital asset related services. All kinds of blessings are fueling the explosion of bitcoin! There was a media report that in May 2010, an American spent 10000 bitcoin and bought only two pizzas. One bitcoin was worth less than half a cent. However, ten years later, a bitcoin has broken through 330000 RMB, which is really incredible. If you hold 33 bitcoin, you will become a multimillionaire today. Under the inducement of skyrocketing prices, some Internet cafes with poor management have been transformed into mines on the spot. A few days ago, a Vietnamese netizen disclosed on a social platform that a local large-scale Internet cafe was affected by the epidemic and its business was dismal. However, the owner of the Internet cafe decided to transform on the spot and upgrade many computers equipped with RTX 3080 video card into mining machines to conduct gold panning operation of digital currency. It is said that once the situation improves or mining is no longer popular, he will switch back to the Internet cafe. Some netizens said: when Internet cafes use 5 yuan an hour, the boot rate is less than half, and there is no business in the evening. Now it is easy to use more than 100 yuan a day. There are also joking that: open the Internet bar flow of people, the risk of epidemic, mining can also be high temperature disinfection, disinfection sold to you, so that you can rest assured. However, some netizens said that once it is used for mining, the life of the video card will be worrying, and the performance and stability of the machine may be a problem. How long can a home computer be mined? Others have come up with the idea of digging bitcoin at home and using home computers. For such an idea, I just want to say, or put it off as soon as possible! Not to mention that the computing power of the whole network is as high as 155eh / s, whether the home computer can withstand the high load operation or not, we can say that the mining of the home computer is also a matter that can not be realized at all. In general, the CPU power of a home computer can reach 800 times per second. With a high-end graphics card, such as GTX 1080ti, the computing power of the whole computer can reach about 1.8gh/s. Now the difficulty of calculation is as high as 214.34 billion yuan, so the theoretical income of a computer is only about 0.0 million 15 pieces per day. If we dig at this speed, it will take about 18000 years to dig up a bitcoin. Of course, this is only a theoretical calculation. Considering the continuous improvement of computing power in the later period, the calculation difficulty will also increase. Therefore, it is impossible to use a home computer to dig for bitcoin. The author has learned that digging bitcoin is not something that a home computer can do today. No home computer has such a capability, because mining is actually a mathematical problem based on hash algorithm, which can not be completed by ordinary computers. Professional mining investment is not suitable for ordinary investors, because only two results can be obtained or not. For ordinary investors, there is not enough money to bet on whether they can dig it. But to build a mine, the investment amount is often more than 10 million yuan. So for those who want to mine through home computers, I suggest that we should give up the idea as soon as possible, and not spend time on such impossible things.