Do you really think that bitcoin is not a bubble? And your concept is wrong. Bitcoin is HIGHLY overpriced, but it is still giving profit to all of us, so we are fine with that.
A bubble is a product that is overpriced and everyone rushes in to get a piece of the pie. Now looking at the bitcoin situation and market. There's no way you're going to say that the coin isn't delivering on its value.
Everyone who says that bitcoin is not a bubble are the dumb ones, it is a giant bubble, but we dont know when it is exactly going to explode.
Maybe it can make a giant drop when it hits $100k, or maybe when it hits $50k, too. Or it can be tomorrow, we dont know when it will happen, but yes, it is a bubble, and a big one.