At first, everyone thought it was just a short-term rise, until BTC went from 90,000, 100,000, 150,000, 250,000... 800,000... and finally 2 million. 15 years later, the child asked: "Dad, is Bitcoin really worth 90,000 US dollars?" You put down the hot bricks on the construction site, and after a moment of silence, you said: "Yes, son, although Bitcoin is as high as 10 million US dollars now, Dad really sold his Bitcoin at 90,000 US dollars and all in a few zero-valued altcoins..."