Today, $BTC became a hot topic mainly due to sharp price fluctuations that sparked widespread market discussion. Its spot price rebounded from a low of $60,000 to above $71,000. The significant price volatility and active trading attracted investor attention. Meanwhile, market focus centered on mining machine shutdown cost analysis (such as high-end mining machines costing around $30,000-$40,000) and macro sentiment shifts (from panic to numbness), combined with rumors clarifying government holdings, all contributing to the topic's popularity.