Simple comes from China. So how do you explain to me that mining has returned to China? Again very simple, don't think that there are small miners with some asic but rather think that the government itself is involved in mining and favors some huge mining pool otherwise how do you explain that 20%?
That's a possibility [direct involvement of the government or even the corrupt officials that accept bribes], but I think most of this percentage belongs to the actual miners that have underground farms and from the following year-old article, you can see some of their ways for remaining under the radar: Inside China’s underground crypto mining operation, where people are risking it all to make bitcoin [refer to "Running an illegal crypto mine" and "Techniques to stay undetected" sections]The Chinese people are also very corrupt. It would not be very shocking if there are Chinese politicians on a local government level who are being bribed by operators of underground mining farms. Mining bitcoin illegaly would also certainly make their mining operations cheaper than if they went through the legal process if the ban did not take place. The effect of the ban was also very positive for Chinese underground miners. It helped them destroy their competition hehehe.
