I just realized that many of you still confuse Layer 1 and Layer 2. Today, I will explain these two important concepts clearly because they really determine how we trade on the blockchain.

First, what is Layer 1? Simply put, Layer 1 is the underlying blockchain, the foundation on which everything is built. Bitcoin, Ethereum, Solana, Cardano, Avalanche... these are Layer 1 blockchains. They operate independently, have their own security systems (such as Proof of Work or Proof of Stake), and are the places where dApps and projects are directly created.

But what’s the problem? When the network is overloaded, transactions slow down, and fees increase. I remember the old days on Ethereum, where transaction fees reached hundreds of dollars, which was really frustrating.

That’s why Layer 2 was created. What exactly is Layer 2? It’s a set of solutions built on top of Layer 1 to address speed and fee issues. Polygon, Arbitrum, Optimism are typical examples for Ethereum. Lightning Network is a Layer 2 for Bitcoin. They still inherit security from Layer 1, but transactions are much faster and cheaper.

I see that Layer 2 solves the high fee and slow speed problems, but the trade-off is increased complexity when switching between Layer 1 and Layer 2. However, the current trend is that more and more users are adopting Layer 2 because of its convenience.

In summary, what are Layer 1 and Layer 2? Layer 1 is the basic blockchain, Layer 2 is a support solution to increase speed and reduce fees. Both are necessary for the crypto ecosystem to operate efficiently.

Do you understand clearly now? If you have any questions about Layer 1 or Layer 2, comment and ask me. Don’t forget to follow for updates on upcoming analysis!