Bitcoin's price stability is being questioned as it struggles to break the $83,000 level amid market volatility.Bitcoin's longstanding 4-year cycle theory is at risk of being broken if its price drops to $63,000 or below.BTC's future trajectory could be determined by key metrics like the violation of the 4-year cycle.Bitcoin continues to trade within a Falling Wedge pattern and may retest the major trendline resistance at $83,500.