I’ve been looking into Celestia, and it seems like Ren is capable of having a damn good Data Availability layer at the core, sMPC layer, that is secured by darknodes. Ren’s sMPC framework, which allows for true rng, could allow for DA sampling where blocks are published using erasure coding. This would allow for only a very small subset of the block data to be randomly sampled to ensure that all the data is available, as opposed to downloading everything, helping to keep darknode hardware requirements light and inexepensive.
Ren essentially could be a hybrid of Avalanche and Celestia; a modular blockchain where Consensus and Data Availability are handled at core darknode layer and execution/sequencing(for L2 rollups) is done at subnet layer. This also ensures that every subnet is forced to pay fees to darknodes in order for their transaction blocks to be published.
Avalanche is looking into supporting L2s and having them settle on their C Chain, but doesn’t seem like that will scale. Without rng, DA Sampling won’t be possible, so Data Availability will be a hindrance.
