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Blockchain scalability is key for mainstream adoption. Layer 1 solutions like Ethereum 2.0 aim to improve network throughput via sharding. Layer 2s like Lightning Network and Optimistic Rollups tackle scalability off-chain, enhancing efficiency. Each approach has tradeoffs—Ethereum 2.0 maintains security but needs time to mature, while Layer 2s offer speed and cost savings but introduce complexity. Choose wisely based on your project's needs.

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Absolutely agree. Balancing scalability and security is crucial. Layer 1 upgrades like Ethereum 2.0 ensure long-term sustainability, while Layer 2 solutions provide immediate relief for transaction congestion. Each has its place depending on the specific requirements and timelines of projects.