Not at all, I don't think there will be a bubble or collapse in the crypto market. The longer answer is that, if you're thinking about it from a purely financial perspective, it's unlikely that we'll see a crash like we did in 2000 or 2008. The reason for this is because cryptocurrencies are not tied to a single company or industry. They have applications across multiple industries, including finance, healthcare and even retail.
So when one sector begins to suffer, other sectors can pick up the slack and keep the growth of cryptocurrency steady. That said, there are definitely some risks involved with investing in any type of asset—including cryptocurrencies—and if you're not careful (or if you invest too much), there's always an opportunity for things to go wrong.
In terms of real-world examples: I used to work at a startup before joining Quora as an engineer. During my time there, we were experiencing rapid growth month after month—and then suddenly we weren't growing anymore! We were losing money every month as our expenses exceeded our revenue stream by about 10%. And since this was my first time experiencing something like this.