There's always a pattern of spikes and dips. But I don't think we're really in a bubble yet.
We're just at the beginning. Cryptocurrency has yet to go mainstream. Once that happens it will explode. Maybe in a few years we'll see a real bubble. But I don't think we're there yet.
I agree also but all asset bubbles are different and what worries me is that the price of cryptos may rise 100's of % in a few months instead of a few years which would compress the time period.