The launch of BTC has the belief of almost everyone in the digital currency field, so Bitcoin is immortal and cryptocurrency is immortal. The ETH upgrade is imminent and powerful. EOS is the first non-decentralized blockchain project in the mainstream sense, with many imitators. XMR implements resistance to all mining machine doctrines, and anonymity is the first. XRP technology is a hard-enough centralized project, which is loved by the majority of the banking industry, and the market extravagance application is far greater than other virtual currencies.