In 2021, I lost more than 300,000 yuan by digging Chia, and I heard that the price of hard drives has risen, so I cleared the hard disk today, which also drew an end to these 4 years. Taking 4T as an example, it was about 260 last year and 290 to 310 this year, mainly depending on the color and probe results. The so-called probe is to insert the hard disk into the chassis and run for a few minutes to see if it can run, if it can't be read, it is a bad disk, this kind of 10 yuan a is sold as scrap, if you can run for a while, it will run wrong, this 100 yuan a piece. When I went down to move the hard drive case today, I didn't move it with a lot of effort, but four years ago, I was able to move dozens of boxes by myself very quickly, and people are most afraid that their hearts will be gone, and the passion of the year is long gone. The biggest lesson for me from this incident is that capital plundering can be bloodless, and Chia coin is a typical case of capital plundering. Surveillance hard disk, generally used for monitoring, for a long time, a lot of half of the run does not run belongs to the 100 I just said, can be used but occasionally lose data, monitoring data loss will be a big thing, so normal businesses are impossible to these hard disks that may lose data, and it is impossible to sell. Over time, ten or twenty years, these hard disks piled up into a mountain, so Chia's father developed green bitcoin, mining coins with hard disks, at the beginning of the currency price was high, the output was high, the hard disks on the market, regardless of good or bad, all skyrocketed several times, and the hard disk inventory that had been piled up for decades was recirculated to the market, at that time, the ships at sea kept being transported from Europe and America to the port, and foreigners sold us the hard disks they didn't use. In fact, mining coins with hard disks does not save electricity at all, neither green nor fair, it is this kind of coin-bursting mechanism, all by luck, sometimes even digging for a few days, can not dig a coin, I was burning incense every day, today to burst coins, today must burst coins, the back of the coins are less and less, even the electricity bill is not enough, can only be shut down and put in the storage room, the first Web3 business failed like this, and it was a very difficult time...