Since its launch in 2015, Ethereum (Ethereum) has seen its vision and practical applications continuously evolve. It was originally conceived as a “world computer,” designed to provide a decentralized platform that enables developers to build and run various decentralized applications (DApps).Over time, and particularly amid the explosive growth of decentralized finance (DeFi), Ethereum has increasingly solidified its position as a global financial infrastructure.
Ethereum: The Cornerstone of the “World Computer”
The concept of the “World Computer” stems from Ethereum’s core innovation—smart contracts. A smart contract is a computer program or transaction protocol stored on a blockchain that can automatically execute, control, or record events and actions when specific conditions are met, without the need for a trusted central authority.
- Smart Contracts and DApps: Ethereum’s introduction of smart contracts enables developers to build a wide variety of decentralized applications (DApps) on its platform. These applications run on the Ethereum Virtual Machine (EVM), and users pay Ether (ETH) as “gas” to keep the applications running.
- Turing Completeness: The Ethereum Virtual Machine (EVM) is a Turing-complete virtual machine, meaning it can theoretically execute any computable program, enabling the development of complex DApps.
- Wide Range of Use Cases: Beyond DeFi, Ethereum’s “World Computer” capabilities have also driven innovation in areas such as NFTs (non-fungible tokens), GameFi (blockchain-based games), DAOs (decentralized autonomous organizations), supply chain management, digital identity, artificial intelligence (AI), and the tokenization of real-world assets (RWA).
Ethereum: The Rise of a Global Financial Infrastructure
Ethereum The rapid growth of decentralized finance (DeFi) has made its role in the global financial infrastructure increasingly prominent.
- The Cornerstone of DeFi: Ethereum serves as the primary platform for the DeFi ecosystem, supporting a vast array of financial activities such as decentralized lending, trading, and stablecoins. As of March 2026, the value of ETH staked on Ethereum stood at approximately $76 billion, providing the network with robust economic security.
- Stablecoins and RWAs: Ethereum supports the issuance and circulation of various stablecoins, whose value is typically pegged to fiat currencies such as the U.S. dollar, providing a foundation for price stability in DeFi. In addition, Ethereum is emerging as a key platform for the tokenization of real-world assets (RWAs), bringing physical assets such as real estate, commodities, and bonds onto the blockchain, with the potential to bring trillions of dollars in value into the blockchain ecosystem.
- Institutional Adoption: With the approval of Ethereum spot ETFs in the U.S. and growing institutional interest in Ethereum, its acceptance within the mainstream financial system continues to rise. Many traditional financial institutions are beginning to explore Ethereum-based solutions; for example, JPMorgan Chase had previously planned to build a private blockchain called “Quorum” on Ethereum.
- The Evolution of the “World Ledger”: Some argue that Ethereum is evolving from the “World Computer” to the “World Ledger.”Through a L1+L2 division-of-labor architecture, the Ethereum mainnet serves as the ultimate trusted ledger for transaction clearing and settlement, while L2 handles high-frequency services for users and ultimately settles transactions back to the mainnet—similar to the relationship between a “central bank” and “commercial banks.”
Challenges and Future Development
Although Ethereum has a grand vision, it still faces numerous challenges on the path to realizing the “World Computer” and “Global Financial Infrastructure,” the most significant of which is scalability.
- Scalability Challenges: The Ethereum mainnet has limited throughput (currently around 15–30 TPS). During peak usage periods for ecosystem applications, network congestion and high gas fees are likely to occur, negatively impacting the user experience.
- Ethereum 2.0 (Eth2) Upgrade: To address scalability, security, and sustainability issues, the Ethereum team has been working on a major upgrade known as Ethereum 2.0 (or Eth2). Key upgrades include:
- Proof of Stake (PoS): Ethereum completed “The Merge” on September 15, 2022, transitioning the consensus mechanism from Proof of Work (PoW) to Proof of Stake (PoS), which significantly reduced energy consumption.
- Sharding: Sharding technology aims to divide the blockchain into multiple segments, each validated by a subset of validators, to improve network efficiency and transaction capacity.
- Layer 2 Scaling Solutions: Layer 2 solutions (such as Rollups, including Optimistic Rollups and ZK Rollups) have become a major scaling technology by processing transactions off-chain and relaying data back to the mainnet, with the aim of increasing Ethereum’s transaction processing capacity.
- “Lean Ethereum” Roadmap: Ethereum Foundation researcher Justin Drake proposed the “Lean Ethereum” vision, outlining multiple protocol upgrades through 2029. The goal is to achieve approximately 10,000 TPS on the L1 mainnet, scale L2 solutions to approximately 1 million TPS, and gradually introduce post-quantum cryptography to address future threats.
- Privacy and User Experience: The roadmap also elevates privacy from the application layer to a core protocol consideration and is committed to improving the user experience of smart contract wallets and lightweight nodes.
In summary, Ethereum’s positioning is not an either/or proposition. While it continues to refine its underlying technology as the “World Computer” to provide powerful computing capabilities for various decentralized applications, it is also gradually evolving into an open, global, and permissionless financial infrastructure, driven by the DeFi wave.The future Ethereum will be the product of the synergistic development of these two visions, continuing to lead innovation in the Web3 era.
