Talk about the fact that bitcoin is a bubble last for several years, but what we see in the end: the price of bitcoin rose from$ 0.01 per bitcoin which could be obtained on delivery to $ 6500 (and there was an increase to $ 20,000). About bitcoin you can say as much as you want that this is a bubble, but the result on the face and growth will continue. All that is happening today is just a price movement and it is normal, the market is relatively young so the fluctuations are huge. Get used to it and learn how to make huge money in this market.