The key to preventing further decline of Bitcoin is that the closing price this week cannot fall below $81000 Bitcoin needs to close above the critical weekly line of $81000 to avoid further downward volatility before next week's Federal Open Market Committee (FOMC) meeting. Breaking through $81000 this week will be key to avoiding further decline in Bitcoin. Maintaining above this level will indicate resilience, but if it falls below $76000, it may trigger more short-term selling pressure. According to the latest estimate from the Federal Reserve's observation tool, the market currently expects a 98% likelihood of the Fed maintaining interest rate stability.