According to Cas Abbé, 2025 has been particularly challenging for altcoin holders due to the end of the typical Bitcoin to altcoin rotation and the delay of Altseason. Cas Abbé suggests strategies for building an outperforming portfolio this year, emphasizing the need for diversification and careful selection of altcoins with potential growth. This analysis is crucial for traders aiming to generate significant wealth in 2025 despite market challenges.