According to PANews, a report from Miner Weekly highlights significant challenges in the Bitcoin mining industry due to a sharp decline in profitability. In November, Bitcoin experienced a substantial price correction, causing the revenue per unit of hash power to drop from $55 to $35 per PH/s. This figure is now below the median total cost of approximately $44 per PH/s for publicly listed mining companies. The global hash rate is nearing 1.1 ZH/s, resulting in a payback period for the latest mining machines exceeding 1,000 days, which is longer than the countdown to the next halving event. In response to these challenges, companies like CleanSpark have repaid their Bitcoin-backed loans and raised over $1 billion in financing. Additionally, Cipher and Terawulf have collectively secured over $5 billion in funding during the fourth quarter. Many mining companies are shifting their strategies towards deleveraging and maintaining liquidity as the industry enters a new phase of survival selection. This trend reflects the growing pressure on miners to adapt to the evolving economic landscape and ensure their long-term viability.