"As long as the music is playing, you’ve got to get up and dance." -Charles Prince, Ex-Citibank CEO 2007
This is one of my favorite modern finance quotes on bubbles because it encapsulates so well why there is still momentum in this crypto bubble even after an even casual reading of the news will tell you that everyone and their grandparents believes it's a bubble.
My bet is that heavy regulation in a market where there is heavy trading (e.g. USA, Japan, Korea) will be the blow that bursts this, but as with everything in public markets, who knows?