The outbreak of Bitcoin triggered the issuance of many air coins and altcoins, and also affected everyone's clarity and thinking ability. It seems that everyone feels that no matter how much money you buy, you can bring huge benefits. It is this influx of brainless fresh blood that has caused the recent turmoil in the currency circle. Countless air coins began to wield their sickles, harvesting the wealth of all users. This is accidental and inevitable. If there is no shock to clean up speculators, it will be detrimental to future development. It is precisely because of the shock that those who really persist can be screened out.