[Trading Moment: Interest Rate Decision and Major Tech Giants' Earnings Approaching, BTC 78,000 Becomes Resistance, 75,000 Turns into Support] Market volatility intensifies ahead of the FOMC decision, with all three major U.S. stock indices declining. OpenAI's underperformance sparks market concerns, and seller liquidity is concentrated in the $78,000 to $80,000 range for BTC.