the price of bitcoin has been changing dramatically, and many people have invested in bitcoin. And they get a generous return. these stories attract more people to join Bitcoin. in my opinion, this is precisely an obstacle. It is an obstacle for Bitcoin to be used on a large scale. It requires a stable value for a currency that is used on a large scale.
I believe that at the moment the market can not be stable. Due to the lack of regulation, there are a lot of speculators on the market who can pump and dump cryptocurrency.