The Ethereum Fusaka upgrade is making waves in the crypto community due to its engineering-focused approach to cost reduction and increased efficiency. Unlike previous upgrades like the transition from Proof-of-Work (PoW) to Proof-of-Stake (PoS), Fusaka targets specific issues for practical improvements. The upgrade aims to streamline Layer 2 (L2) operations, primarily reducing data availability (DA) expenses associated with publishing data to Layer 1 (L1). Utilizing an eightfold expansion powered by Blob technology and PeerDAS random sampling verification, it significantly lowers L2 costs. While some experts believe a reduction in L2 fees alone may not fully drive ecosystem growth, Fusaka’s impact on specific application chains like real-world asset infrastructure and payment ecosystems could spur development in these areas.