Ethereum’s longevity looks strong, driven by its adaptability and foundational role in decentralized applications. Unlike Bitcoin’s fixed design, Ethereum evolves — evident in its transition to proof-of-stake with the Merge, cutting energy use by over 99%. It powers the vast majority of DeFi, NFTs, and DAOs, making it the backbone of Web3. With upcoming upgrades like Danksharding and Proto-Danksharding, Ethereum is aiming for lower fees and higher throughput, addressing past scalability issues. Its developer community remains the largest in crypto, ensuring constant innovation. While rivals exist, Ethereum’s network effect, active ecosystem, and focus on long-term scalability give it a clear edge in staying relevant for decades to come.