According to Hash, halfway through 2019, the number of new cryptocurrencies included in Coinmarketcap is only 301, which is less than the growth level in 2014. And it is not difficult to see the data of 2018. The competitive currency market does have a faltering precursor. In addition, the crowdfunding duration of the new online projects showed a trend of rising month by month. From less than a month in the past to the length of nearly three months now; but even so, there are still a large number of projects that cannot complete the pre-set funding goals in the crowdfunding period.