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Re:How Discord Handles Two and Half Million Concurrent Voice... by DINKDINK on Monday September 10, 2018 @03:12PM (#17954246)
>The fact is that you can't easily do the last part without a central server.

Looks up DHT use.

Re:How Discord Handles Two and Half Million Concurrent Voice... by Klathmon on Monday September 10, 2018 @03:32PM (#17954443)
DHT is a fantastic system, but it's not easy by any means, and it still needs some "important" nodes to help bootstrap the system.