Because of the ongoing fucktastrophe, the cries of "Use SIGNAL!" are constant and unavoidable. And I get it, it may be the least-bad option in a sea of terrible options. If, that is, you choose to ignore the advice of "don't use your phone for that shit" (the Stringer Bell Rule). But out of curiosity, because I haven't been keeping up, has the Signal Corporation addressed: The fact that they ...
The main difference is that XMPP (like most other federated systems) is based on passing messages, so if a new server joins a chat, it gets send messages from that point onwards.
In Matrix that is different. When a new server joins a chat it exchanges the entire database for that chat, and for DAG consistency reasons this means all the metadata since the chat was first created, often years ago.
Yes in a local database, not a distributed one.
The main difference is that XMPP (like most other federated systems) is based on passing messages, so if a new server joins a chat, it gets send messages from that point onwards.
In Matrix that is different. When a new server joins a chat it exchanges the entire database for that chat, and for DAG consistency reasons this means all the metadata since the chat was first created, often years ago.