There is no one who will know exactly, before bitcoin price touch $19.500 there is no one who will be assume that bitcoin can reach the all time high at this year. But, when bitcoin rally there are so many people who optimistic that bitcoin can pass $20.000 before the end of this year.

Honestly, it just need one day to change our prediction, bitcoin price drop to $16200 yesterday and many people predicting that the bull run is over. I don't think like that, bitcoin just meet a correction and so far it is healthy correction. Can you see the montly chart? If you know technical analyst especially harmonic pattern analyst you will consider that the correction will be temporaly and the price will increase again.