Bitcoin tested the $81K support and recorded a mild price increase resulting in a progression to the $83K resistance.If Bitcoin falls below $80K, it has little to no support until $70,000, potentially leading to a bullish turn.The prolonged hold-up at the $80K level has caused frustration, but previous support testing could lead to a rebound to $90,000.Bitcoin's technical indicators suggest an oversold market situation, while other altcoins show modest bullish signs.