Introduction to L2 Scaling Solutions

Layer 1 blockchains, like Ethereum, face challenges as their popularity grows. They can become slow and expensive to use, especially during peak times.

This lesson introduces you to Layer 2 (L2) scaling solutions, which aim to make blockchains faster and cheaper without sacrificing security.

Blockchain technology often grapples with the "Blockchain Trilemma." This concept suggests that a blockchain can only achieve two of three core properties effectively:

• Decentralization: No single point of control.
• Security: Resistant to attacks and manipulation.
• Scalability: High transaction throughput.

Layer 1s often prioritize decentralization and security, leading to scalability issues.