😺What are L1 and L2?
🪫Layer 1 (L1), also known as the basic blockchain or main chain, is the core layer of blockchain technology. It is responsible for handling basic transactions in the blockchain network, such as final settlement of transactions, data storage, and consensus mechanisms. 💸Layer 1 networks are usually highly decentralized, with no single point of control, and provide high security through consensus mechanisms such as PoW or PoS. Bitcoin and Ethereum are typical representatives of Layer 1 networks.
🪫Layer2 (L2), also known as the extension layer or expansion layer, is an additional protocol or solution built on top of Layer1. The main purpose of Layer2 is to improve the performance, scalability, and user experience of Layer1. 🐣It achieves this goal by moving part of the computation and data storage off-chain, thereby reducing the burden on Layer1 and improving overall efficiency. Layer2 allows for improvements and expansion without changing the Layer1 protocol, providing developers with more room for innovation. Common Layer2 solutions include zk-Rollups and Optimistic Rollups, etc.
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