Prediction is the core of bitcoin market. Without prediction, entire market is bound to fail. We invest in bitcoins because we believe that the value of bitcoin will be high in future. That's one kind of prediction.
Also majority of the crypto trades are based on short term predictions. If people stop predicting/speculating bitcoin's price, the market movement will be halted and the growth will be stopped. Bitcoin is largely a speculative asset. Without prediction, nothing will be achieved.
Very well said, speculations is the main source of bitcoin's price achievement. Imagine if no one spread the positivity towards bitcoin ? imagine if no one speculated that bitcoin could do so much? I guess all of us give a hit on bitcoin last year, or even buy to expect a profit from it. Also that made bitcoin as an speculative asset, because of speculation due to its trend.