[Vitalik: Fusaka is Developing Core Feature PeerDAS, Aiming to Enable Real-Time Blockchain Without Downloading Full Data] According to a report by Jinse Finance, Ethereum founder Vitalik Buterin posted on the X platform, stating that for Fusaka, security is the top priority. Its core feature, PeerDAS, is attempting something unprecedented: creating a real-time blockchain where no single node needs to download all the data. The way PeerDAS works is that each node only requests a small number of "chunks" of data, probabilistically verifying that more than 50% of the chunks are available. If more than 50% of the chunks are available, then theoretically, nodes can download these chunks and use erasure coding to reconstruct the remaining data. In the first version, the full data of the block still needs to exist in one place, under two scenarios: (i) Initial broadcasting: when the data is first published; (ii) Data reconstruction: when the publisher has released between 50% and 100% of the chunks. However, these roles are trustless: we only need one honest participant to perform these tasks. Even if there are 100 dishonest participants, the protocol will bypass them. Moreover, different nodes can perform this task for different blocks. In the future, cell-level messaging and distributed block building will enable these two functions to also be decentralized. This is all new technology, and it is wise for core developers to remain extremely cautious in testing, even though they have been working on it for years. This is also why the initial number of blobs will be conservatively increased and then become more aggressive over time. But this is key to L2 scaling (and ultimately also key to L1 scaling, once the L1 gas limit is high enough that we must place L1 execution data into blobs).