Stop calling the recent expansion of the cryptosphere a bubble. We are not in a bubble. We are simply experiencing the rapid expansion of a nascent technology with new entrants and their fiat entering the market. A bubble is when everyone is talking about cryptos, e.g. your taxi driver, the bellboy, etc. Outside of my close circle of tech colleagues zero people are talking about Bitcoin.
Each time the price of something skyrockets in a very short period, public opinion splits into two options - "this is a bubble" and "this is a new paradigm". In reality, you never know for sure, the price is driven by so many factors, and the future, both distant and near, can be so unpredictable that there's simply not worth to seriously argue if it's a bubble or not. People should put their money where their mouth is and buy or short Bitcoin accordingly.