According to Cas Abbé, the cryptocurrency market capitalization is currently retesting a multi-year uptrend support level, which is critical for maintaining market stability. The weekly Relative Strength Index (RSI) has also reached a support level, indicating potential resilience. Abbé warns that if this trendline is lost, it could lead to a market decline of 25%-30%. Historically, this support has held twice since 2023, providing some confidence in its potential to hold again.