Layer 2 blockchain solutions are protocols built on top of Layer 1 blockchains (like Ethereum or Bitcoin) to improve scalability, speed, and cost-efficiency without compromising the security of the base layer. Let’s break it down clearly: 🧱 What Are Layer 2 Solutions? Layer 1 (L1): The main blockchain (e.g., Ethereum, Bitcoin). Layer 2 (L2): Secondary frameworks or protocols that sit on top of Layer 1 to offload computation or transaction processing. Goal: Solve the blockchain scalability trilemma — balancing security, scalability, and decentralization . 🔍 Why Layer 2 Matters Problem on Layer 1 Solution via Layer 2 Slow transactions Fast off-chain processing High gas fees Lower-cost alternatives Network congestion Transaction batching & scaling Scalability bottlenecks Parallel or off-chain execution 🧠 Types of Layer 2 Solutions 1. Rollups (Most Popular on Ethereum) Rollups execute transactions off-chain and post data (or proof) back on-chain. Type De...