After Ethereum completed the Fusaka upgrade, many mistakenly believed that the introduction of the 'blob fee minimum reserve price' mechanism (approximately equivalent to 1/16 of the execution layer base fee) through EIP-7918 would enable Ethereum to regain economic dominance and solve the value capture problem of ETH. However, the reality is still far from that. Currently, L2 still captures the vast majority of profits; for example, Base retains over 70% of its economic benefits, while the blob costs paid to Ethereum L1 are just a tiny fraction. To truly alleviate the issue of unequal value capture and address the structural contradictions of liquidity fragmentation between L2s, there are feasible paths, one of the most discussed solutions being Based Rollup. Its core idea is that L2 no longer builds an additional centralized sequencer or independent small validator system, but directly inherits the existing decentralized security and activity of Ethereum L1; if native execution layer integration (Native Rollup) is added in the future, the overall architecture will be more complete. The value of Based Rollup lies in addressing the two most challenging issues currently facing the Ethereum ecosystem: liquidity fragmentation and ETH's inability to capture its rightful earnings. Most L2s currently still rely on centralized sequencers, which means that the Sequencer can arbitrarily reject transactions, causing the entire L2 to halt during outages, while profits and MEV are monopolized by the team, leaving ETH completely unable to participate in profit distribution. Based Rollup, based on L1 sorting, returns the sorting to Ethereum's block proposers, with finality and security guaranteed by data availability and proof systems. As a result, transactions from different Based Rollups will be sorted within the same L1 block, inherently possessing natural interoperability across L2s, significantly reducing liquidity fragmentation. At the same time, since sorting revenues flow back to L1, the profits originally monopolized by L2 will become income for L1 proposers, which means ETH stakers will directly receive higher rewards, achieving stronger value capture. The key issue is whether L2 teams are willing to give up this portion of profit. Given the current ecological atmosphere, most L2s will find it difficult to actively choose this highly reciprocal economic model towards L1. Interestingly, Reya