@cyrus interesting, thank you! This does improve the storage situation, but the bandwidth requirements will remain huge and only increase with use.
But that kind of uproots one of the expectations most users have about a social network – that posts are not ephemeral.
I'd like to see relays talking to each other, but I don't believe this will ever happen in any meaningful way on Bluesky, for reasons Christine Lemmer-Webber dove into in her write-up.