Of course it's in a bubble, it's naive to think that we won't have a massive crash because "this time is different - we have institutional investors". But this doesn't mean that it's bad to invest in it, you can try to do some short-term trading and exit long before the crash, you can try to buy dips and sell them quickly, and dips will happen because there's always corrections in the bull market. Bitcoin is a risky investment, but the risk is justified, so the only thing investors should worry about it so not overexpose themself to it.
You cannot blindly assert that bitcoin will not manifest itself as a financial bubble over time. Therefore, such a statement has the right to go. You should always remember about the peculiarities of cryptocurrencies and especially universal coins that do not have a real product. They always say that you need to invest in a cryptocurrency so much of your money that you don't mind losing it. However, no one can say that he has some extra money and he can afford to lose it. Especially if one coin is worth more than $ 23,000. Everything can be put into place and judged only for a significant period of time. Ten years is still very little for this.