Bitcoin market enters asymmetric demand zone amidst sharp volatility and uncertainty.Average selling pressure on top exchanges has dropped from 81,000 BTC per day to 29,000 BTC, indicating a shift in momentum.Bitcoin faces pressure at the critical support level around $81,000 as geopolitical tensions and policy risks unsettle markets.Bitcoin trades at $84,200 as bulls aim to overcome key resistance at $86,500 to confirm a new recovery phase.