I don't think we are in a bubble. I actually don't believe in bubbles. With everything there is volatility. Not a single person can argue against the superiority of blockchain in regards to the current solutions. It's just superior in every way. Cryptocurrencies simply ride the wave of innovation and hope to drive enough capital to build companies that offer real solutions. Sure 99% of cryptocurrencies are vaporware but one needs just a bit of research and can invest wisely. Pick 10 and Hodl. This is an investment that is going to pay out in a decade. not today with the FIAT hurdles.
if you try to trade you will get REKT right now because a handful of people control everything. Avoid being the 99% "get rich fast" group. I never traded nor I ever plan to do so. I read a couple of finance books and plenty of research. Even a monkey can beat the market by just HODLing.
I see what you are saying but just because you don't believe in bubbles is irrelevant to whether they exist or not ;)