Bitcoin is the hallmark of cryptocurrencies, and a few years ago, all cryptocurrencies developed on the basis of Bitcoin. With the development of hype coins in recent years, many hype coins will die after their popularity has passed. When I was investing last year, I was always following the dynamics of cryptocurrencies. Now I invest in bitcoin and some stablecoins, hype coins too take time to analyze when to buy and sell because it has no pattern and needs to seize opportunities.