Layer 2 Solution
A secondary protocol built on top of a Layer 1 blockchain to increase speed and reduce fees. Layer 2s process transactions off the main chain and then settle results back on-chain. Examples include Arbitrum, Optimism, and the Lightning Network.
Why It Matters
Layer 2 solutions are built on top of layer 1 blockchains to improve transaction speed and scalability. They address issues like high fees and congestion, making cryptocurrency use more efficient and user-friendly.
Example
For instance, the Lightning Network is a layer 2 solution for Bitcoin that allows faster transactions by processing them off the main blockchain. This enables easier microtransactions and lower fees.
Beginner Context
For newcomers, understanding layer 2 solutions can enhance your grasp of how cryptocurrency networks evolve. They show the innovation aimed at improving user experience and network efficiency.
Mike Starr
Founder, CryptoWizardTools · M.S. Organizational Management
Last reviewed: August 2026
Related Terms
Rebase
A mechanism used by some algorithmic stablecoins where the total supply of tokens automatically increases or decreases to maintain a target price. Unlike traditional supply changes, rebasing adjusts balances in all wallets simultaneously.
AMA
Ask Me Anything. A public Q&A session, typically hosted on social media or forums, where project founders answer community questions.
ATL
All-Time Low. The lowest price ever reached by a cryptocurrency or asset.
Consensus Mechanism
The method by which a blockchain network agrees on the current state of the ledger. Common mechanisms include Proof of Work and Proof of Stake.
Burn
The permanent removal of tokens from circulation, typically by sending them to an inaccessible wallet address. Burning reduces supply and can increase scarcity.