Real bubbles are pretty rare, especially with a global market. I think bitcoin is going to die off or change a lot in the next decade, but cryptocurrencies have a market value of tens of trillions of dollars, I have no idea what the upper value of blockchain in general could possibly be. Its certainly going to change the world, will probably end up taking down entire governments. In a round about way, blockchain with automation may end up fufilling Marxs dream of a flat heirarchy.