Comment by galactus
14 days ago
ActivityPub supports a less compelling user experience for many people: you only have a partial view of the network (you won’t see all the replies to the posts of people you follow on other servers), no global search, etc
Technically the internet also doesn't have "global search" but people are able to get along just fine most of the time.
This is how offline social networks work, and it might be fundamentally the only way social networks end up working. If each instance can't filter what it receives, then spam is too easy. If every message is globally flooded, the system scales as O(N^2) and is easily vulnerable to DoS.
AT solves these problems. Even if AT turns out to be a bust, they have an excellent architecture.
AT works by the use of global relays which see everything.
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