Midday Hot Topics: Today’s main trading theme is still “BTC sets the direction, ETH looks for upside volatility, and altcoins rotate.” According to Binance’s 24H data, BTC is at $83,525, down 1.09% over 24H; ETH is at $2,656, down 1.57% over 24H. Global crypto total market cap is about $2.85 trillion, with BTC accounting for 58.7%. The Fear & Greed Index is 74 (Greed). My view: If BTC can hold above the intraday low, capital will continue to rotate between highly liquid assets and altcoins with strong narratives; if it breaks below the key low, first watch for deleveraging—don’t rush to bottom-pick.