This is just my opinion. Do not take this as investment advice. 

I believe cryptocurrency as a whole will have a lot more room to grow and rise in evaluation. There are a lot of people calling what is happening right now in the sector a bubble. How bitcoin can be up +800% in a year at over $4k a coin. It is pretty remarkable. But what I do not think those people calling this a bubble realizes that relatively speaking with only a total of 21 million bitcoins ever to exist and the ecosystem that people have already built around it that even at the price of where it is at there is still room to grow.

Short term it may likely drop significantly, but long term there is too much players involve to not expect bitcoin to grow in a evaluation. The internet and 21st century technology has allow people all over the world to share and create. This creates a huge quantity of resources that can be utilize to form a greater value for cryptocurrency.  The demand is too great to be ignored, over 7 billion people having the chance to own something that in itself is what mainly will drive crypto to greater heights.

I am not saying crypto can not be in a bubble. Instead I am saying that relatively speaking crypto has too much demand that any significant drop will be quickly absorbed. In stock market only the very few get to participate. The people who do not have special privileges to trade can't participate. In the years after the great recession I have seen investment banks and trade platforms luring all kinds of people to invest in stocks by giving lower fees and minimums. Even introducing to fancy new software and programs to entertain all. What crypto is better at than stocks is that crypto can evolve into anything people can imagine it to be. Crypto can be paired with gold, or goods, or services, and so on. The development of what each crypto coin is to become can be decided by the people. There are many more ways to create, invest, and utilize crypto than stocks. Stocks can not do any of this. 

There was the tulip bubble, real estate bubble, stock bubbles, but each one of these bubbles was isolated within a region. Some of these bubbles may have affected the global economics, but the point of source is always specific. Rather crypto being decentralized equals no isolated region but the whole globe on present time being affected. When USA was mining bitcoin it did not took long for China to follow and excel. Today you can read stories from Japan and Russia trying to do more. There is simply too many takers to stop this massive growth. 

To end this, I would ask everyone not when crypto's bubble will be popped, but when you will accept crypto as a way of life?