Don't buy domestic disks. Don't buy BTCS, a domestic disk. As a veteran player who has experienced 519 for more than three years, buying domestic disks is equivalent to buying pig-killing disks. How to know whether it is a domestic disk can be seen from the original Twitter account of the name X, whether he posted in English or Chinese. The purchasing power of RMB is completely different from that of USD in the blockchain, which is 7.43 times the purchasing power. Buying domestic disks is equivalent to suicide.