In the past two days, the value of bitcoin dropped for the first time, dropping below the level of $ 10,000 first and then continued its slow decline at a price of around $ 8,800 for more than 30% in three days, leading to a general decline in the copycat currency and a larger decline than the decline in bitcoin Also exaggerated, and some decline even more than 50%, 2018 new year will be bitcoin another September 4, 2017 it? Are you panic? 
I was panicked because I thought it was a chain reaction. The drop in bitcoin prices led to declines in other currencies as well. I was very confident in bitcoin, but I now think his price is not going to work well, and I also unable to predict when the price of bitcoin will go back up.