Ethereum is testing the historical significance of its $1,580 support once again. Over the past three years, this specific level has functioned as a primary demand zone, halting corrections and triggering major upward expansions: • October 2023: Catalyzed a +149% macro rally. • April 2025: Secured the floor to fuel a +203% expansion. • Recent Action: Triggered a direct bounce from $1,580 back up to test the $1,800 resistance range. While $1,580 remains the definitive line to protect the bullish outlook, the risk of a repeat is high. Every successive test of a horizontal support level dilutes the remaining buy-side liquidity, rendering the floor structurally weaker. Maintaining high-timeframe closes above $1,580 is mandatory to keep the ETH bullish thesis intact and preserve the foundation for another major expansion.