After the Ethereum Fusaka upgrade, due to the adoption of EIP-7918 (minimum reserve price for blob fees, approximately 1/16 of the base fee), a price floor mechanism has been established, leading many to believe it could solve the ETH value capture issue. In reality, there is still a long way to go. Currently, L2 still captures most of the profits, for example, Base captures over 70% while only paying a small amount of blob fees to Ethereum L1. To truly solve this problem and also address the issue of L2 liquidity fragmentation, there are indeed solutions, one of which is Based Rollup. This means allowing L2 to directly inherit the existing decentralization, economic security, and vitality of Ethereum L1, rather than creating a centralized sequencer or small validator set from scratch. If Native Rollup (execution layer integration) is added later, it would be even better. Adopting Based Rollup can alleviate the two major issues currently facing the Ethereum ecosystem: liquidity fragmentation and ETH value capture. Most L2s currently use centralized sequencers. This leads to sequencers being able to refuse to package transactions; outages causing L2 to come to a halt (which has happened multiple times in history); and MEV and profits being monopolized by L2 teams, preventing ETH from capturing reasonable value. With Based Rollup, L2 can move towards decentralization. Traditional L2s trying to achieve decentralization, such as implementing fraud/validity proofs + decentralized sequencer systems, is very complex. Based Rollup allows L1 proposers to handle transaction ordering, supported by DA + fraud/validity proofs. Meanwhile, all Based Rollup transactions are ordered within the same L1 block, achieving cross-L2 interoperability and alleviating liquidity fragmentation issues; Ethereum L1 captures reasonable income from ETH, and most of the sequencer profits from L2 become income for L1 block builders, converting into rewards for ETH stakers. The premise here is that L2s need to be willing to adopt Based Rollup, but currently, most L2s are reluctant to give up the most lucrative portion of profits. Currently, the L2 application chain Reya uses ZK proofs to ensure finality and L1 validators/delegated ordering, with 20% of protocol/transaction fees used to buy back ETH. It provides a more favorable feedback to the Ethereum L1 ecosystem compared to lighter solutions. If Reya succeeds, more and more L2 application chains will adopt the Based Rollup architecture, which is beneficial for ETH value capture.