L2 Scaling

L2 Scaling is a technique that speeds up cryptocurrency transactions by processing them off the main blockchain (called Layer 1) before settling the final result back on it. Think of it like a express lane: instead of every single transaction waiting in the main highway, batches of transactions get bundled together and verified separately, then recorded once on the main chain. This makes things faster and cheaper. You'll hear about L2 solutions when researching cryptocurrencies like Ethereum, especially when people discuss transaction fees or speed. For example, someone might say "I'm moving my crypto to Arbitrum, an L2 network, to avoid high Ethereum fees." It matters because slow, expensive transactions can make crypto less practical for everyday use.