L2 Scaling

L2 Scaling is a technique that speeds up cryptocurrency transactions by processing them off the main blockchain (called Layer 1) before settling them back on it. Think of it like a express lane: instead of every single transaction waiting in the main highway, batches get processed faster on a side road, then confirmed all at once. You'll hear about L2 when people discuss Ethereum or Bitcoin improvements, because these blockchains can get congested and expensive during heavy use. Popular L2 solutions include Polygon and Arbitrum. For investors, L2s matter because they make crypto networks cheaper and faster—which can boost adoption and the value of projects using them. For example, a DeFi platform might move to Arbitrum to offer users lower fees.