Why Was Sui Built From Scratch Instead of Forking an Existing Blockchain?

Sui was built from scratch because its engineering team, most of whom worked on Meta's Diem project, needed a data model and a programming language that no existing blockchain offered. 

Forking Ethereum or Solana would have meant inheriting an account-based ledger that processes transactions one after another. That structure could not deliver the sub-second finality and parallel execution the team was aiming for.

Why Didn't Mysten Labs Just Fork Ethereum or Solana?

Sui's founders, working under Mysten Labs, came out of Meta's Diem (formerly Libra) project. When Diem was shut down by regulators in 2022, the team kept two things: the Move programming language and hands-on experience trying to move digital assets at internet scale.

Forking an existing chain would have carried over its core limits too.

• Ethereum's account-based model updates one global ledger, so unrelated transactions still queue up in sequence.
• Solana reaches high throughput but leans on increasingly powerful, specialized validator hardware rather than horizontal scaling.
• Neither chain was designed around Move, so a fork could not use Move's asset-safety guarantees without a separate virtual machine rewrite.

Rather than patch around these constraints, the team designed a new object-centric data model paired with a new consensus engine.

What Problem Was Sui Trying To Solve?

The core issue was simple: as more people use a blockchain, it usually slows down and fees rise. Sui's architecture treats every asset (a coin, an NFT, a piece of contract state) as its own object with a unique ID and owner, instead of a line in one shared ledger.

Because most transactions only touch objects the sender already owns, validators can tell right away when two transactions are unrelated.

Independent Transactions Run In Parallel

A transfer of SUI between two wallets and an unrelated NFT trade do not need to wait on each other. Sui processes them at the same time instead of queuing them behind one another, the way Ethereum's sequential model does.

How Does Consensus Fit Into This Design?

Sui separates transactions into two paths. Simple transfers that touch only owned objects skip full consensus and finalize once validators sign off. Transactions touching shared objects, such as a decentralized exchange pool, go through Mysticeti, a directed-acyclic-graph consensus protocol that reached mainnet in July 2024.

Mysticeti removed the leader-based bottleneck used by its predecessor, Narwhal and Bullshark, and now commits transactions in roughly 390 milliseconds under realistic network conditions, based on internal Mysten Labs benchmarks.

Why Move Matters Here

Move treats digital assets as resources that cannot be copied or accidentally destroyed, a rule enforced by the language itself rather than by developer discipline. This closes off a category of bugs common in Solidity, where balances are just numbers in a mapping that can be manipulated if code has a flaw.

Where Does Sui Stand Today?

As of early July 2026, SUI trades around $0.72 to $0.74, with roughly 4 billion of the fixed 10 billion token supply in circulation, according to CoinGecko and CoinMarketCap data. 

The network's DeFi total value locked has ranged between roughly $440 million and $900 million through the first half of 2026, down from a late-2025 peak near $2.5 billion, reflecting broader market pullback and token unlock pressure rather than a change in the underlying architecture. Roughly 100 validators currently secure the network under delegated proof of stake.

Conclusion

Sui's from-scratch approach gives it an object-centric model for parallel execution, the Move language for asset safety, and Mysticeti consensus for sub-second finality on shared-object transactions. These three pieces work together specifically because they were designed as one system rather than bolted onto an existing chain's rules.

Resources

1. Report by Sui Foundation: Official documentation on the Mysticeti consensus protocol
2. Report by Sui Foundation: Official network release schedule and validator genesis details
3. Report by DexTools: Overview of Sui's architecture, Mysticeti consensus, and Diem origins
4. Report by BitMEX: Mysticeti latency benchmarks and validator structure details
5. Report by Eco: Object model explanation and current TVL data
6. Report by CoinShares: Background on Mysten Labs, Diem, and Sui's design goals
7. Report by CoinGecko: Current SUI price, circulating supply, and validator data