Definition of"Layer 2" in English
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Layer 2
Definitions
Noun
Examples
"Many decentralized applications are migrating to Layer 2 solutions to reduce transaction fees and increase throughput."
Many decentralized applications are migrating to Layer 2 solutions to reduce transaction fees and increase throughput.
"Optimistic rollups and ZK-rollups are prominent examples of Layer 2 scaling technologies."
Optimistic rollups and ZK-rollups are prominent examples of Layer 2 scaling technologies.
Synonyms
Etymology
The term 'Layer 2' derives from the concept of layered network architectures (such as the OSI model in computer networking), where different functionalities are separated into distinct layers. In blockchain, it signifies a protocol built 'on top' of the foundational blockchain (Layer 1) to enhance specific capabilities, primarily scalability.
Cultural Notes
Within the blockchain and cryptocurrency ecosystem, 'Layer 2' is a critical concept for enabling the widespread adoption of decentralized technologies. It addresses the 'scalability trilemma' – the challenge of simultaneously achieving decentralization, security, and high transaction throughput on a blockchain. Layer 2 solutions aim to offload a significant portion of the transactional burden from the main blockchain, making transactions faster and cheaper, thereby enhancing user experience and enabling more complex applications.