Vitalik: It is best to limit calldata and take this opportunity to increase more blob space

chainCatcher message, Ethereum Foundation data researcher Toni Wahrstatter responded to Vitalik's earlier point: "If the blob space is full and it is not possible to revert to calldata without paying too much, then the costs for the entire Ethereum ecosystem (including L2) will be higher."

Vitalik responded: "I don't think using calldata as a 'fallback' for blob space is a healthy pattern we should encourage? If rollups ultimately have to maintain two code paths, that would be too wasteful. It would be better to limit calldata and take this opportunity to increase more blob space."