Its a predictable blow by blow rerun of previous bubbles because of the halvings in supply every 4 years. The only thing that is going to stop it is a failure in significant use cases.
Looked at entirely unemotionally, Bitcoin is basically a really crappy idea for any kind of commerce. The price is unpredictable, there's an active disincentive for people to spend it, it's hard to secure.
The use case that can't be matched by anything else is its incorruptible nature, portability and fixed supply. That's more than enough for a significant chunk of the world's population to want to sink some money into it. I just can't see them buying their tampons with it.