In the realm of digital assets, metaphors help us understand different blockchain ecosystems. Bitcoin functions as digital gold—a store of value, scarce and resilient. Ethereum operates like digital oil, powering the entire DeFi and smart contract infrastructure. But where does Solana fit into this paradigm? With its high-speed transaction capabilities and lower fees, Solana positions itself as digital infrastructure for real-world applications. Rather than competing on the same terms, these three major blockchains serve distinct purposes: Bitcoin for value preservation, Ethereum for complex financial operations and decentralized applications, and Solana for scalable, efficient execution. Understanding these roles clarifies why different use cases gravitate toward different chains.