L1, L2, L3? It's not magic, it's how crypto scales without dying – Ultra-simple guide.

Easy explanation of L1, L2, and L3 for crypto newbies!

Layer 1 (L1): The main foundation, like the main highway. It's the original blockchain (Bitcoin, Ethereum, Solana, Sui...). Everything is recorded here securely and in a decentralized manner, but it can be slow and expensive when there's a lot of traffic.

Layer 2 (L2): Built on top of L1, like express lanes or high-speed bridges. It solves speed and fee issues (e.g., Optimism, Arbitrum, Polygon, Lightning Network). It processes fast and cheap transactions, and then "summarizes" everything back to L1 to maintain maximum security.

Layer 3 (L3): The next level, like the end-user apps or services we use. It's built on L2 (or L1) to do specific things: games, ultra-fast DeFi, social wallets, on-chain AI... These are the most user-friendly and specialized dApps that you use every day.

In short: L1 = core security | L2 = speed and low cost | L3 = easy and powerful apps.

This is how blockchain scales without losing its decentralized nature! Got it? #CryptoBasics #Web3 #L1