According to Cas Abbé, historical altseason patterns in 2017 and 2021 feature a double bottom, a series of higher lows, and a subsequent multi-year slow uptrend, leading to a 3-6 month period of sustained price increases (source: Twitter/@cas_abbe, June 9, 2025). This analysis highlights the importance of monitoring altcoin technical structures for traders, as similar formations could indicate the onset of strong bullish momentum in the cryptocurrency market. Identifying these long-term chart patterns can help traders position themselves ahead of potential altcoin rallies, optimizing entry points for maximum returns.