ソース:[1] Opinion: L2s are no longer truly secured by Ethereum (https://www.techflowpost.com/article/detail_2 ...)[2] Layer 2: Bridges, Tokens and Fungibility | by Sam MacPherson | Medium (https://vertexaisearch.cloud.google.com/groun ...)[3] The Centralization Risks of Layer 2s and Their Impact on Ethereum's Future - AInvest (https://vertexaisearch.cloud.google.com/groun ...)