Layer 2 solutions are poised to be a hot trend in 2024 for several compelling reasons:

1. Scalability: A major challenge for blockchain networks like Ethereum is scalability. Layer 2 solutions, including Rollups and State Channels, offer a significant boost in transactions per second (TPS) and reduce the time it takes to process transactions.

2. Lower Transaction Costs: High transaction fees have been a significant barrier for many users of blockchain technology. Layer 2 solutions can mitigate these costs, making blockchain more accessible.

3. Enhanced User Experience: By speeding up transactions and lowering costs, Layer 2 solutions provide a vastly improved user experience, which can lead to broader adoption of blockchain technology.

4. Improved Privacy: Certain Layer 2 solutions offer enhanced privacy features over their base layer blockchains.

5. Support for DeFi and NFTs: Scalable Layer 2 solutions are crucial for the continued growth and popularity of decentralized finance (DeFi) and non-fungible tokens (NFTs).

6. Eco-Friendliness: Layer 2 solutions are generally more energy-efficient than their traditional blockchain counterparts, making them a greener option.

Overall, by addressing scalability and transaction cost issues, along with the ongoing development of their ecosystems, Layer 2 solutions are set to be particularly relevant in 2024.