Recently studying multi-chain ecosystems, I truly understand why the meaning of EVM and its operational logic are so critical to Web3. To put it simply, if Ethereum is a "world computer," then the EVM is its CPU and operating system — this analogy immediately helped me understand many things.

First, let's talk about what Bitcoin does. It’s essentially a distributed ledger that records who owns how much money. But Ethereum’s ambitions are much greater; it doesn’t just record balances, it maintains the entire network’s "state" — each wallet’s assets, contract data, ownership changes. The EVM’s job is to read smart contract code, process logic, and execute transactions. Developers write code in high-level languages like Solidity, which compilers turn into bytecode, and then the EVM breaks down the bytecode into over 140 basic operation codes (Opcodes) to execute. The whole process is like a traditional computer CPU, but it runs simultaneously across thousands of nodes worldwide.

There’s a particularly interesting design here — the Gas mechanism. Every computation requires payment, which isn’t just for profit but serves two deep purposes. First, to prevent someone from writing an infinite loop contract to crash the entire network. When Gas runs out, the EVM forcibly stops, ensuring network security. Second, these fees directly compensate node operators for electricity and computational resource costs. So Gas is actually central to EVM’s security and decentralization incentives.

In recent years, a very interesting phenomenon has emerged — almost all new blockchains are doing "EVM compatibility." Arbitrum, Optimism, BNB Chain, Polygon — these are examples. Why? Because developers can directly copy and paste Ethereum code onto these chains without rewriting. This makes migrating DApps super easy and explains why EVM has become the industry standard. In contrast, non-EVM chains like Solana and Aptos, while faster, require developers to rewrite entire applications in Rust or Move, making the learning curve much steeper.

Of course, traditional EVM also has bottlenecks. It is single-threaded, processing only one transaction at a time. During bull markets, the network gets congested, and transaction fees skyrocket. But recently, new projects like Monad and Sei are working on "parallel EVM," capable of handling multiple unrelated transactions simultaneously — which could be a key breakthrough for scalability.

Understanding what the EVM means and how it works is essentially understanding how Web3 infrastructure operates. Whether you want to evaluate the potential of new public chains or dive deep into DeFi and NFT ecosystems, this knowledge is essential. The multi-chain era has already arrived, and EVM compatibility is the technological foundation driving all of this.