5/ Now as for why a tail emission is a good idea -- in cryptocurrencies like Bitcoin, having the block subsidy go to 0 means that at some point in the future the security of the network will depend *100%* on user's transaction fees.
5/至于为什么尾部发射是个好主意——在比特币等加密货币中，将区块补贴设为0意味着在未来某个时候，网络的安全性将*100%*取决于用户的交易费用。