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Re:Drawbacks of P2P and a defense of Signal by apichat on Sunday January 31, 2021 @05:44AM (#25977810)
The mobile problem for XMPP is solved since 2016 :

https://gultsch.de/xmpp_2016.html

Re:Drawbacks of P2P and a defense of Signal by DyslexicAtheist on Sunday January 31, 2021 @06:21AM (#25977981)
that leaves the problem of p2p being an overlay network and as such not being a solved problem for network operators (especially in wireless networks). http://www.spice-center.org/files/publications/90-305-1-PB.p...