Raising and Falling are the natural rule of market and economy but the most important thing is the values of it. Bitcoin can be seen as a most valuable thing in general but it is still unsteady so bitcoin investors must do something to control the explosion of bitcoin's price. Based on my own experience, i will keep invest in bitcoin and have detail plans for my investment. As you can see, bitcoin go down and raise as a essential rule but people still want to invest in it because they find the advantages of bitcoin and the future of bitcoin in market. Holding in this time is a good idea if investor want to play safety.