Good article. But some serious points to note. Owning a cryptocurrency is not an investment. One can use cryptocurrencies to navigate investments but owning or hodling is not an investment of itself. I made an explanation here: https://medium.com/@1bc0cb87a6e/69151f2f0ec6
Also, the idea of it being a bubble is subject to debate. For example, what is the true worth of 1 btc? It’s inconclusive. Plus that, global adoption of crypto still has a long way to go. Will volatility continue? Definitely yes! But you cannot say that it’s a bubble because we cannot say what market price is (at full global adoption).