I remember those days like it was only yesterday. I'm surprised it's been a year. I think it's normal to drop. The value of bitcoin could not be expected to increase continuously. After each value increase, there will be a decrease. But such a drop came as a surprise, since everyone thought that bitcoin would reach the value of 100,000 dollars. The value of bitcoin will remain at the 20,000 dollars levels for a while longer. I don't think there will be a rise for at least another year.