Because everyone's sentiment will be very different and the perspective that only thinks about a short way and something definite is what they can digest so that when bitcoin is now at $40k and say that bitcoin will get to $500k then most people will definitely react that it is an impossibility maybe even those who believe still doubt because it will not be able to happen in the near future just like in 2019 like the story you gave when bitcoin was $4k and people said that there was no way it would be at $55k.

But on the other hand we also have our own beliefs for this regardless of whether it can happen or not in the near future of course we know that we only need to focus on the goals we want to achieve in bitcoin so that regardless of some speculation about the price of bitcoin and many sentiments or reactions that occur afterwards we only have to focus on what we will do for our own benefit. As long as we are still confident and our target is still not achieved for bitcoin then we still have to wait until the target we are aiming for can be achieved.