Many people say this is a very difficult time for cryptocurrency, probably true. From the beginning of the formation of bitcoin until the end of 2017 the price of the crypto currency tends to increase and the price is very high for a long time. So many people are shocked and worried about the significant decline in the price of the crypto currency. Whereas the price of bitcoin and ethereum at the beginning of 2017 and the previous year is lower. I am sure the people here have understood and included the patient person. The up and down of cryptocurrency areplayed by some people who have been interested in the world of cryptocurrency.