# How Sei Outperforms Competing Layer 1 Solutions

By [Herm](https://paragraph.com/@herm) · 2023-05-19

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**1.What is SeiNetwork？**

Sei is an open-source Layer 1 blockchain that was built to address the trading scalability problem. Sei is the fastest Layer 1 for trading, optimizing every layer of the stack to offer the best infrastructure for trading apps. Sei's unique value proposition lies in its singular focus on the trading function. By optimizing its infrastructure for trading apps, any gaming economy, NFT marketplace, or DeFi DEX, will operate better on Sei than on any other Layer 1.

![](https://storage.googleapis.com/papyrus_images/4568c1c765c3080cf577b18090ef5fb074c19ddedde73221fb88737cfade46eb.png)

**2.How does SeiNetwork become the fastest Layer 1 ？** **2.1 The purpose of Sei's existence is for better transactions**

**2.2 Twin-Turbo Consensus**

**2.3 Parallelization**

**2.1 The purpose of Sei's existence is for better transactions.**

    `Sei Labs has one core thesis: the ability to exchange digital assets is the fundamental use case for crypto.Therefore, Sei's goal is to get a better deal. Sei's direction is also very clear - for the transaction.   Everything Sei is built to improve the trading experience, providing the best infrastructure for trading applications and exchanges.`
    

**2.2 Twin-Turbo Consensus**

`Sei features Twin-Turbo consensus to reach levels of performance that no other Layer 1 has gotten.Twin-Turbo Consensus including Intelligent Block Propagation and Optimistic Block Processing.`

**2.2.1 Intelligent Block Propagation**

![](https://storage.googleapis.com/papyrus_images/332696ceecb5271c362e359ee2d143d3a2225e8e627a5c046f8ff9e06d4d74a1.jpg)

`Unlike other Layers, the completion of a transaction requires different acceptance steps and as much data as possible. In Sei, the proposer only needs to send the hash value of each transaction in the block instead of all transaction data, and the verifier can quickly rebuild the block by using their own local mempool, which improves the efficiency of block broadcast.`

**2.2.2 Optimistic Block Processing**

![](https://storage.googleapis.com/papyrus_images/30f753b5f42499baf13122638cae6eeb493d27de9f89e7f27304ad2c6482700a.jpg)

![](https://storage.googleapis.com/papyrus_images/4f62687e3956fd4962ebad4348325f0f79836badc2c4ddb97709d3b2e7b4c614.jpg)

Sei's Optimistic Block Processing is an optimization of Tendermint. After the proposal step of consensus, applications can start optimizing processing blocks, in parallel with the pre-vote and pre-commit phases. Then, Sei will start "by optimization" to change the state to a temporary candidate state until it is accepted by consensus. If it is not accepted (very rare), the block is abandoned. Sei can increase throughput by 83% through the optimization of Intelligent Block Propagation and Optimistic Block Processing

**2.3 Parallelization**

![](https://storage.googleapis.com/papyrus_images/0f5e959689cbacb5e6e01e1fe446f9e46c1c734ef0fbd3bae66ab15dcdd4dd77.png)

`In other cosmos chains, the transaction processing of the chain is executed sequentially. In this process, no matter which market is in, the transactions are processed one by one, which greatly hinders the throughput. And as the load increases, the latency will also increase exponentially. However, in Sei, due to the use of parallel processing. Except for specific scenarios that need to be processed sequentially, other non-overlapping independent market transactions can be processed at the same time. This greatly improves the transaction speed.`

**3.Summarize**

`Sei has greatly improved the speed of transactions through means such as Twin-Turbo Consensus and transaction parallel processing. In the standard Cosmos chain, the block confirmation time is about 6 seconds, and in Sei's ideal state, it can be shortened to 500 milliseconds. What a terrible speed. This is equivalent to the difference between driving on the highway and driving on ordinary roads.`

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*Originally published on [Herm](https://paragraph.com/@herm/how-sei-outperforms-competing-layer-1-solutions)*