I think predicting bitcoin price is impossible, because bitcoin price is really unpredictable base on the unstable price. I believe that the price of bitcoin may change anytime so there is no accurate prediction that we can make. If we put basis on its price i believe that even expert on the crypto feild cannot predict the price of bitcoin.
It is very possible to predict bitcoin price but it is just that you cannot predicts it accurately all the time! There are many traders here that can predict bitcoin up to 65% accuracy but no man or software can predict 100% accuracy!
That's why cryptocurrency is really unpredictable, so if someone is trying to predict the price just because they are trading then the possibility of hitting it correctly is not really 100% but you can still manage to make your chances higher by doing the technical and fundamental analysis.