It is indeed true that predicting the exact price of bitcoin at exact times is difficult if not impossible. But even so, predicting a range becomes possible and more easier depending on the ways you go about it like how you use tools or indicators to help read price movements and such. Which, gives way for better educated guesses/predictions to help create better plans/strategies that can lead to big or small profits. Of course, it does not apply for signal subscribers or gamble traders. Oh well, at the end of the day, finding ways that suits you most by experience is what veterans bank on while some, specially on bitcoin rely on long term holding while buying whenever they have extra funds to spare or on good dips.