Vitalik: “Reducing L1 slot time” is worth discussing, but it needs to be done carefully to avoid hurting independent stakers

David Hoffman, founder of Bankless, said in an article on X that in a sense, the rollup-centric roadmap has been "completed", and the current progress includes the launch of 4844, DA, and cheap L2. The primary optimization focus in the future is L1. Vitalik Buterin responded by saying, "I don't think it's a priority issue. The next step for DA is peerdas, and the people working on that are almost completely disconnected from those working on SSF or EVM execution improvements. I do think it's a premature declaration of victory that 'the rollup-centric roadmap is complete'. We are only 1.3x usage peak away from full blobs (= 21600 blobs/day). We need to launch peerdas and start scaling safely in parallel with L1 improvements." Hoffman continued, "If we increase L1 blocktimes, won't that also increase the supply of blobspace? Focusing on L1 feels synergistic with focusing on L1 and L2 at the same time, while focusing on DA is only good for L2." Vitalik explained, "If we reduce slot times without changing other variables, then the answer is yes. But the limits of both are determined by bandwidth limits, so if we are happy with today's gas/blob limits, then we will also increase gas/blobspace. Limits are satisfied directly. So I generally think bandwidth and latency are two separate issues. I do think reducing L1 slot time is worth discussing, although this needs to be done carefully to avoid ‘killing’ independent stakers, or even geographically dispersed stakers. ”