When building the future, Vitalik Buterin responded to criticisms regarding the user experience on Ethereum's layer 2s, often seen as fragmented and complex. He emphasized that 'Ethereum users should not feel the need to justify the current shortcomings' while building for the future. On Monday, Camila Russo, founder of the DeFi media platform The Defiant, shared on social media X that although she loves Ethereum and the network's community, there needs to be a stop to downplaying the terrible experiences on layer 2. 'If you are a long-time cryptocurrency user, this is really bad. It's not just difficult but also painful. And if you are new, it's hard to accept. It's simply unusable,' Russo said. Transactions on Ethereum now often require users to move through multiple different layer 2s, such as minting NFTs on one chain, participating in airdrop farming on another chain, and receiving stablecoins from different chains. Russo argued that merely using one chain or multiple chains within the same ecosystem is not enough, as seamless interoperability between all layer 2s and the mainnet is crucial for ensuring usability. Despite technical solutions like abstract accounts, they have not been widely implemented by wallets and protocols, leading to limitations in improving the user experience. 'Improving the Ethereum user experience requires collaboration across the entire ecosystem. This is already difficult, but it will become impossible if people continually convince themselves that: 'It's not that bad.' But the reality is that it really is bad,' Russo emphasized. On Tuesday morning, Buterin responded that feeling the need to justify current shortcomings is a natural reaction when people feel 'helpless' in building the future. 'We are building the future,' he emphasized, also referencing his earlier post on a potential roadmap for interoperability between layer 2s. Improvements aimed at enhancing interoperability between layer 2s seek to make the Ethereum ecosystem more cohesive by reducing dependence on centralized factors and simplifying transactions between chains. Proposed solutions include standardizing addresses, payment requests, and storage wallets, facilitating asset movement between layer 2s more easily and reducing gas costs. To achieve simpler interoperability between layer 2s, cooperation between technical teams and the community is needed to establish consistent standards, thus creating a seamless experience for both layer 1 and layer 2 of Ethereum. 'If we are truly serious about layer 2 being part of Ethereum, we need to make the layer 2 ecosystem feel like using a unified Ethereum ecosystem,' Buterin emphasized.