《Selling Block Space Isn’t Profitable Anymore: Arbitrum and MegaETH Dive into Building Applications》 (Author: Castle Labs Research, Translated by Deep Tide) The gap between on-chain fees and application fees is widening, making it hard for block space to sustain high valuations. Arbitrum, Polygon, and others are boosting revenue through ecosystem expansion, while MegaETH and Sophon are shifting to in-house application development to internalize profits. Cross-chain models like Timeboost and Superchain show promise but rely heavily on ecosystem and token performance. After Base exited, revenues declined. New chains need to internalize value through self-developed applications, stablecoins, and other methods to increase actual usage and establish vertically integrated revenue models. Read the full article: https://www.(wublock123.com)/articles/article-59401