Bitcoin's market dominance could see a decline to 40% by September 2024, driven by the rise of alternative cryptocurrencies. As the market matures, investors are increasingly looking to diversify their portfolios with altcoins that offer new and innovative use cases. The growth of decentralized finance (DeFi) and other blockchain technologies is contributing to this trend, potentially reducing Bitcoin's market share. This shift indicates a broader interest in the crypto space beyond just Bitcoin, leading to a more balanced and competitive market. As we approach September, Bitcoin's dominance may reflect this changing landscape.