# Bitcoin L2 solutions By [doahan](https://paragraph.com/@doahan) · 2024-10-31 --- Supporters of Bitcoin Layer 2 (L2) solutions argue that they can enhance Bitcoin’s scalability, security, and growth potential. First, L2 solutions are seen as necessary to reduce transaction fees on Bitcoin, especially in light of recent network congestion from innovations like Inscriptions and BRC-20 tokens, which have driven fees up. L2 options like Rollups and Sidechains can help manage network activity more affordably, just as Ethereum’s L2 Rollups decreased fees by around 90% following the Dencun upgrade. Secondly, Bitcoin L2 solutions are believed to reinforce Bitcoin’s “security economy.” As block rewards decrease with each halving, L2 networks could help sustain miners’ revenue by increasing transaction volumes, supporting Bitcoin’s security without solely relying on block rewards. This is crucial as reduced miner participation could risk Bitcoin’s decentralization and make it more susceptible to centralized mining pools. The third benefit of Bitcoin L2 is its untapped growth potential. The total value locked (TVL) in Bitcoin L2 remains small compared to Ethereum L2, suggesting room for growth. With Bitcoin’s community and reputation, L2 networks could attract significant capital if they achieve milestones in transaction volume and developer engagement, as shown by the strong community interest in Bitcoin-based NFTs and other ecosystem projects. Conversely, critics argue Bitcoin should remain solely a “store-of-value” asset. They feel that turning Bitcoin into a programmable network, akin to Ethereum, undermines its primary value as “digital gold.” Current solutions like Rollups and Sidechains, they argue, do not yet meet the technical standards to be true Bitcoin L2s and still face challenges in maintaining Bitcoin’s security and decentralization. Moreover, some critics feel the term "Bitcoin Layer 2" is overly marketed, as most solutions require custodial trust, thus deviating from Bitcoin's principles. Ultimately, the debate on Bitcoin L2 centers on whether the potential benefits of scalability and security are worth the compromise of Bitcoin's original principles. Despite these challenges, L2 solutions are attracting investment, with ongoing development that may eventually bring tangible improvements to the Bitcoin network. --- *Originally published on [doahan](https://paragraph.com/@doahan/bitcoin-l2-solutions)*