$BTC Let me tell you a story. For example, right now, the hardest thing to have in the market is gold, but this gold is very difficult to buy, and the total amount is just a little bit. So, will a group of people first hype up another coin, making everyone feel that it's time to switch to the leader, and then start selling more Bitcoin to exchange for a worthless coin? That coin continues to give everyone a very good expectation, but in fact, that expectation may never be met. However, it will definitely keep trying to go up, and in this process, the BTC that is sold is what these people really want to own. Well, you should think about this carefully. Understanding this story might help you better understand the 'currency' part of cryptocurrency.