Vitalik Buterin, a co-founder of Ethereum, is reconsidering the network's previously championed 'rollup-centric' roadmap. He notes that Layer 2 (L2) solutions have decentralized 'far slower' than anticipated, while the Ethereum base layer itself has made significant advancements. This reevaluation suggests a potential shift in focus for future scaling strategies, acknowledging the different paces of development between the base layer and its scaling solutions.