According to @TATrader_Alan, Bitcoin dominance (BTC.D) fell below a weekly diagonal trendline last week after two bearish divergence signals, indicating weakening momentum on the weekly timeframe, source: @TATrader_Alan on X. He adds that BTC.D shows a loss of upward momentum to reclaim the breakdown this week, suggesting continued pressure on dominance, source: @TATrader_Alan on X. The author frames this as an Altseason start signal, implying potential altcoin outperformance versus BTC if dominance continues to decline, source: @TATrader_Alan on X.