We are only few months in 2018., you don't know and there is no possible way to know where bitcoin is heading tomorow and yet you are speculating about bitcoin value in 2019.
All speculations are pointless, if you read everything here, whole board you will see that no one can predict future
You cannot completely say that it is difficult to predict the future, when bitcoin started everyone expected the price to reach double figures and it happened after that everyone was hoping for the price to reach triple figures and it happened fast and after that getting the price to thousand dollars was a huge prediction and it also happened eventually All speculations are pointless, if you read everything here, whole board you will see that no one can predict future
, after that the growth was so fast and like that this is also another prediction that could happen in the future, the time taken to achieve these valuation is really short considering bitcoin is around just ten years old.