The declines of Bitcoin in the past few four-hour levels are similar. They all form a range of fluctuations, and then break downward, triggering a gate-drawing market. The key short-term neckline support of Bitcoin is 57,600. If it holds, it will be a volatile trend of 57,600-62,000. If it falls below, it will be a four-hour or even daily decline gate market. #btc