According to Tustnodes, Ethereum may partially address the complexity of fragmentation by increasing the block size from approximately 1 MB per 10 minutes to approximately 8 MB. Ethanfang 2.0 Coordinator Danny Ryan publicly stated: "Based on recent research on the size of security blocks and the propagation time, we are making the block bigger, so the data availability of the system is still 1 MB/s, so the ZKrollup is being executed. Similar scalability improvements can be achieved when operating with OVM. It is reported that ZK rollups is a hybrid extension method that combines chain security with a second-tier network through smart contracts and zero-knowledge methods. OVM refers to the Optimistic Virtual Machine (OVM) of the Ethereum Layer 2 project Plasma, a virtual machine that supports all Layer 2 protocols.