A few years ago, a bitcoin could be bought for a few dollars. The quality of a bitcoin itself hasn't changed, but now the price is much higher. A bitcoin has no intrinsic value. For that reason, the high prices now could be a warning sign. In the past, gold has played the role of giving warning signs. Now, it's bitcoin. The high prices of bitcoins probably have something to do with the fact, that people are losing their confidence in the current financial system. Bitcoin is considered more and more as a safe haven. Hopefully it is. I think, it's not.