What Is Monad? Understanding Parallel EVM
Monad is a high-performance Layer 1 public chain, with its most core innovation being the "parallel EVM" — enabling Ethereum applications to run hundreds or even thousands of times faster than before, without changing a single line of developer code. You can think of it as swapping out an old engine for a new one while keeping the driving experience completely unchanged.
Step 1: First, understand the problem it solves — why "parallel" is needed
Ethereum's mainnet handles about 10–15 transactions per second, and gas fees spike during network congestion. This limits the experience of many applications — on-chain games can freeze, and high-frequency trading becomes impossible.
The traditional EVM executes transactions serially: one transaction must be completely processed before the next begins, like a single-lane tollbooth. What Monad does is simple: turn that single lane into a multi-lane highway, allowing non-conflicting transactions to be processed simultaneously.
Completion criterion: Understand that Monad's goal is to boost transaction processing speed from ~10 TPS to 10,000 TPS without sacrificing decentralization.
Step 2: Understand "optimistic parallel execution" — how Monad achieves it
Monad's parallel approach is called Optimistic Parallel Execution. Here's how it works:
Run everything simultaneously: All transactions are first executed in parallel, assuming they do not interfere with each other, quickly generating pending results.
Then check for conflicts: Following the original order, the inputs of each pending result are checked one by one to see if any earlier transaction modified them.
Rerun if there's a mistake: If a transaction is found to have read data that was later altered by a prior transaction (for example, a balance changed), that transaction is re-executed.
The official documentation uses an apt analogy: two chefs preparing ingredients simultaneously. Chef A is chopping vegetables, and Chef B needs those vegetables to make soup. If A decides midway to switch to a different vegetable, B must pause and adjust. However, because most ingredients are already ready for the re-execution, the process is much faster.
Key detail: Parallel execution is only the means of execution; the final results are completely identical to serial execution. Both developers and users perceive no difference other than the speed increase.
Completion criterion: Be able to explain the core logic of "optimistic parallel execution" in your own words — run simultaneously first, verify in order afterwards, rerun if mistakes are found.
Step 3: Compare Monad's "parallel EVM" with Solana
Many blockchains are also working on parallel processing, but Monad's approach is different:
| Comparison Dimension | Monad (Parallel EVM) | Solana |
|---|---|---|
| Parallel Approach | Optimistic parallelism — execute first, then check for conflicts | Requires transactions to declare in advance which state they will access |
| Developer Experience | Fully compatible with EVM; contracts do not need to be changed | Uses a non-EVM Rust ecosystem with a different programming language |
| Conflict Handling | Automatically re-executes upon detecting a conflict | Transactions with overlapping access lists are processed sequentially |
Monad's core idea is: developers don't have to change anything. Existing Solidity contracts, MetaMask, Hardhat, and other tools work out of the box.
Completion criterion: Understand that the main difference between Monad and Solana is that the former "runs first and adjusts later," while the latter "declares first and runs later."
Step 4: Learn Monad's five technical pillars that enable this performance
The official documentation lists five core innovation modules:
① MonadBFT consensus mechanism — A Byzantine Fault Tolerant consensus based on HotStuff optimizations, solving the "tail fork" problem. Block time is 400 ms, and transaction finality is approximately 800 ms.
② Parallel Execution + JIT compilation — This is the optimistic parallel mechanism described above, combined with Just-In-Time compilation to accelerate smart contract execution.
③ MonadDB state database — A storage engine specifically designed for Ethereum's Merkle Trie structure, employing io_uring for asynchronous I/O to fully leverage SSD performance, without the extra mapping overhead found in LevelDB/RocksDB.
④ Asynchronous Execution — Consensus and execution are decoupled into separate pipelines: nodes first reach consensus on transaction ordering, then execute. This means execution time is no longer a bottleneck for consensus.
⑤ RaptorCast — An efficient data propagation protocol that reduces the overhead of broadcasting blocks across the network.
Completion criterion: Be able to name the five innovation modules of Monad and their core functions.
Step 5: Look at real-world data — mainnet status
Monad's mainnet launched on November 24, 2025. As of 2026, some key developments include:
Hardware requirements: The recommended validator configuration is 16-core CPU, 32 GB RAM, 2×2 TB NVMe SSD, and 100 Mbit/s bandwidth — consumer-grade hardware that preserves decentralization.
Community & Ecosystem: The Monad Foundation launched a "Dedicated Device Subsidy Program" to subsidize multi-signature device costs for protocols with a TVL exceeding 2.5 million USD.
MON token: Total supply of 100 billion tokens, used to pay gas fees and secure the network through staking.
Completion criterion: Know that Monad's mainnet is live and that hardware requirements are relatively accessible.
Common Misconceptions
"Parallel EVM means executing transactions in a scrambled order": Not true. Monad preserves Ethereum's transaction ordering; only the execution method changes from serial to parallel, and the final results are completely identical to serial execution.
"Developers need to rewrite contracts to use it": No, they don't. Monad is compatible with EVM bytecode; Solidity contracts can be deployed directly without any code changes.
"Monad is a Layer 2": It is not. Monad is an independent Layer 1 public chain, not a Layer 2 network built on top of Ethereum.
Risk Reminder
Monad's mainnet has been live for only a short time (since November 2025), and the ecosystem is still in an early construction phase. Its real-world resilience remains to be tested.
The conflict re-execution mechanism of parallel execution might impact performance under extreme high-concurrency scenarios. Whether throughput can stably reach 10,000 TPS still requires mainnet data validation.
Next Steps: Visit the Monad official website (monad.xyz) or documentation (docs.monad.xyz) to discover what applications are currently in the ecosystem. If you're interested in high-performance EVM, keep an eye on the developer docs to see if it's suitable for deploying or migrating your project there.
