Unichain And The Growth Of Layer 2 Networks

The recent announcement of Unichain, a Layer 2 scaling solution, has generated significant buzz in the DeFi space, promising enhanced speed, efficiency, lower cost, and integration with other Layer 2 solutions to reduce friction for liquidity movement. Before going deeper, let's start from the basics, what is a "Layer 2"? Here are the key concepts based on standardized definitions:

• Layer 1 Networks (L1): A base blockchain network, such as Bitcoin or Ethereum, and its underlying infrastructure that validates and finalizes transactions.
• Layer 2 Networks (L2): A secondary framework or protocol that is built on top of an existing Layer 1 system in such a way that it inherits the security properties of the Layer 1 system while allowing for a higher transaction throughput than the Layer 1 system.
  • Layer 2 networks accomplish this (and often lower transaction costs) by separately processing transactions proposed by users of the Layer 2 network, aggregating (or