Day trading can be a good or bad strategy for trading bitcoin, depending on the individual trader's goals, risk tolerance, and experience. Day trading involves buying and selling assets within the same trading day, and it can be a high-risk, high-reward strategy. It's important to understand the market and have a solid understanding of technical analysis before attempting to day trade bitcoin. Additionally, it's important to have a strategy in place and to stick to it, rather than making impulsive decisions based on emotions. It's also important to be aware of the risks involved and to never invest more money than you can afford to lose.