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@twen @smallcircles @BeAware @fediversereport @axbom

The lines are now blurred, especially since the primary source of definition was the Wikipedia article for “Fediverse”, and that often changes when someone randomly takes over.

Personally, back in 2010, if I remember correctly, I simply called everything as #DDFON or the “Decentralised, Distributed, Federated, Open, Network”.

That basically covers Jabber/XMPP, Matrix, OStatus (back then, before ActivityPub), Diaspora, DFRN, Zot, those crypto SNS, today's ATproto, and Nostr.

Last year, based on the two or three polls I did, I started calling it as:

1. DDFON as #MycelialWeb.
2. Each “network in the MycelialWeb is called a #Mycelium or #MyceliumNetwork.

In nature, a mycelium is a network of mycelia. A collection of mycelium is called Mycelial (and they look like a web together).

It wasn't my idea, someone suggested it. (The instances were the polls were, sadly, are gone.)

So:
* #Nostr Mycelium
* #ActivityPub Mycelium (or #Fediverse)
* #ATproto Mycelium (or #BlueSky / #Bsky)
* #Matrix Mycelium
* #XMPP Mycelium
* etc.

A collection of mycelium is called the Mycelial Web.

Maybe confusing, the Mycelial Web can simply be called #SocialWeb. It was what all of it together were called back in 2005-2008 anyway (no idea how it fell out of use).

So, a collection of Mycelium networks is called the SocialWeb, which the Fediverse is simply one Mycelium network.