Those who buy Bitcoin for 19k may now be crying, but look at those who bought Bitcoin in the past, some bought Bitcoin for $100 in 2013 and lost more than 80% in 2014 , if they have enough patience to hold Bitcoin until 2017, they can still get very huge returns.
Yes that's true 100% trusting in bitcoin that will pump at and buy from 19k to dump 5k will a big problem Who bought in that case very huge money that loss from him.