This time the bull run is different from 2017. In 2017 Bitcoin and almost all Altcoin were pumped together. But in the bull run of 2020, the first bitcoin pump, but the altcoin season has taken a long time to come. Because investors want assurances and no other coin can give assurances like Bitcoin. As a result, they have invested in Bitcoin. On the other hand, they have sold their Altcoin to invest in Bitcoin quickly. As a result, both the demand and the price of altcoin have declined.