According to Michaël van de Poppe (@CryptoMichNL), Bitcoin has reached a new all-time high, prompting traders to closely watch for the onset of altseason. Historically, major Bitcoin price surges have set the stage for capital rotation into altcoins, increasing trading opportunities in projects like Ethereum, Solana, and Polygon. Van de Poppe emphasizes that tracking Bitcoin dominance and market sentiment is critical for timing altcoin entries, as past cycles often show altcoins rally after Bitcoin consolidates at new highs (source: Michaël van de Poppe, Twitter, May 25, 2025). For traders, monitoring volume shifts and dominance ratios can offer actionable signals for rotating capital into high-potential altcoins as the market transitions from Bitcoin-led gains to broader crypto sector growth.