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Overview: Fediverse

What?

Strictly speaking, the Fediverse is a collection of interoperable social networks built on the open Web standard ActivityPub, including Twitter-lookalike Mastodon and YouTube-lookalike PeerTube, as well as Meta's Threads, which "federated" in 2024.

Unlike Twitter and YouTube, however:

  • Mastodon/PeerTube are not owned and controlled by corporations. Anyone can launch and operate a Mastodon or PeerTube server, just like anyone can set up an email server and exchange emails with others using the email standard.
  • The person who creates a server sets its rules (privacy, hate speech, etc).
  • Users on any Mastodon/PeerTube server can not only interact with users on other Mastodon/PeerTube servers, they can interact across Fediverse platforms. For example:
    • if Mastodon user A follows PeerTube user B, B’s PeerTube videos will appear in A’s Mastodon feed,
    • user A can even comment on the video from within Mastodon, without visiting PeerTube or having a PeerTube account.

This would be like if my Twitter account followed someone's Facebook page, yet we could still interact seamlessly from our platform of preference. That’s impossible as Twitter & Facebook are walled gardens. Fediverse platforms like Mastodon and PeerTube are not – this is the Open Web on social.

So what?

While each Fediverse server is a community with its own rules, they're not walled gardens. This helps solve the vicious circle problem facing new platforms (why join a network where there are so few people on it? Hence noone joins it, so numbers stay low. So noone joins it): people don’t need to join the same social network, they just have to join any Fediverse network. 

And that, in theory, changes everything. Instead of everyone being trapped in a few platforms owned by billionaires who impose the algorithm which maximises their profits (ie optimising for enragement), "The Fediverse thus promises a landscape of interconnected gardens of all shapes and sizes, each managed according to its inhabitant’s needs. People can roam everywhere, talk to anyone and change “home garden” at will" - Welcome to the Fediverse, starry-eyed noob.

Challenges

The ActivityPub approach, however, has some flaws - see:

  • the singleton problem: it's "difficult to convince ... a major server to [federate] ... with a minor one... three Mastodon servers contain almost 60% of the known Mastodon population" - Peer-to-Peer Network Models and their Implications.
  • "Federated networks become oligopolies at scale" due to forces seen everywhere ("airline routes, power grids, trains, banks, Bitcoin mining, protein interactions, ecological food webs, neural networks"), so the fediverse evolves to become something only a little better to the centralised apps it was trying to replace - see Nature's many attempts to evolve a Nostr

Other approaches to building alternative decentralised ecosystems therefore exist.

What about...?

Bluesky

By late 2024 I had opted for Bluesky as more promising for building decentralised collective intelligence, because:

  • like Fedizens, Bluesky users own their data, but they can also move it wherever they like without changing their identity (unlike in the Fediverse).
  • anyone can build on Bluesky, without asking permission, so any Bluesky user can subscribe to custom feeds and moderation tools developed by 3rd parties.

fediverse-bluesky

Derived from this Bluesky thread by @danabra.mov

Nostr & Farcaster

These both venture into blockchain territory. I'll be investigating these soon.

See also

Personal state of play

ActivityPub

I was an early convert to ActivityPub as a theoretical idea, and in 2022 found myself writing a Fediverse strategy report for another EC department as the EU's Data Protection Supervisor and the EC's IT department launched social.network.europa.eu, the EU's own Mastodon server. The same year saw the EU Bubble's own server - https://eupolicy.social/ - launched. As I pointed out at the time, this had real potential: "it should be very easy for eupolicy.social to avoid creating a Brussels Bubble within the Fediverse... rather than building bridges outwards, we can pull national conversations into the Bubble, simply by following the right people." (Am I on the right Mastodon instance?).

At about the same time I took the plunge as part of the #TwitterMigration triggered by Elon Musk's purchase of Twitter. I was optimistic (my first post was literally Welcome to the Fediverse, starry-eyed noob), but within a few months I'd discovered an unhappy truth: the current infrastructure simply doesn't deliver content properly reliably.

I'd point you to the mid-2023 toot where I pointed this out, but (as if to illustrate my point) it's gone: in November my server simply disappeared, taking all my content and connections with it, without warning. I managed to dig out a screenshot of that toot from my phone and include it in All my toots gone.

Well before then the EU's experiments had become clearly underwhelming, with accounts limited to the institutions, rather than the people working in them. Someone clearly never read Euan Semple's "Organisations don't tweet, people do", missing a huge opportunity that news organisations started embracing in 2022: setting up a Fediverse server for their journalists to prove that they are their journalists, not an imposter. In April 2024 it was closed.

Meanwhile https://eupolicy.social/ was shrinking, from 720 active accounts soon after launch to 225 by late 2024.

From Threads to Bluesky...

Literally one month after my Mastodon server disappeared, Instagram's "Twitter-killer" Threads arrived in Europe, announcing their intention to join the Fediverse. I dug out my never-used Instagram account, and also launched a Bluesky account to kick both networks' tyres in parallel.

Currently I'm feeling confident about Bluesky, as set out in my November 2024 newsletter.

---

Version control

I develop this Fediverse Overview using the permanent versions pattern described in  Two wiki authors and a blogger walk into a bar….

  • changes in this version:
    • updated to reflect what I learnt about Bluesky, and generally shortened
  • version control

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More reading: resources tagged OR(#fediverse, #open web, #bluesky, #mastodon, #threads, #nostr) follow below:

Relevant resources

The Future of Social is Here: a Show and Tell (part 3: Friendica)
blog.elenarossini.com
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"Friendica only has about 14,559 total users ... 1692 are “monthly active users” ... [but] Friendica users are incredibly passionate about it... features-rich, unique and brilliant".These include "add and follow RSS feeds and BlueSky accounts", which is enough to pique my interest. Elena Rossini is a new user, so she links to a…

Could social media support healthy online conversations? New_ Public is working on it
www.niemanlab.org
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Profile of New_Public, founded by Eli Pariser of Filter Bubble and Upworthy fame, and Deepti Doshi "from from Meta, where she’d spent much of her tenure leading the company’s Community Partnerships... supporting, Facebook group admins... as well as UT Austin professor Talia Stroud, who remains on the board, and their drive to stimulate "…

Tumblr Alternative Loforo: Most Active Fediverse Blog Option After WordPress‽
darnell.day
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Loforo is "an ActivityPub Tumblr alternative whose vibe reminds me of the early days of Tumblr... second most active ActivityPub blog platform in the Fediverse, behind only WordPress". The author lists some areas of improvement, and claims that if Loforo can implement them it'll "inherit Tumblr's fallen crown [and] ... sur…

The Three-Legged Stool: A Manifesto for a Smaller, Denser Internet
publicinfrastructure.org
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The Initiative for Digital Public Infrastructure's manifesto sets out the three legs upon which an open public sphere must rest.

It's all about the infrastructure
activitypub.ghost.org
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A report from Ghost on ActivityPub integration, starting with a nice intro for newcomers: "HTML is a standard for displaying text and images on a computer. Email is a standard for sending and receiving messages privately. ActivityPub, then, is a standard for sending and receiving content publicly.", and followed by some musings on the di…

We need to finish building the Fediverse
www.blog-pat.ch
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Michael Foster's "top ten unfinished building blocks" are:trust & safety: "heart of an ethical social web... [currently] delegated to a small group of volunteers... [but] green shoots emerging"spam filters: "there are some amazing tools now... Pixelfed has shown what can be done"safe spaces / bridging & f…

The Threads Creator Paradox
www.augment.ink
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Anuj Ahooja asks, on Threads' first birthday, the "existential question... Why does Threads exist? ... an alternative to Elon Musk's X. But ... a platform can't exist to be "an alternative." It should be able to stand alone with its unique purpose and be built to incentivize users to follow that purpose... [unfortunat…

How to stop Perplexity and save the web from bad AI
www.platformer.news
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Casey first gets the Perplexity.ai scandal off his chest: "the Clearview AI of generative artificial intelligence companies: scraping billions of pieces of data without permission and daring courts to stop it. Like Clearview, Perplexity’s core innovation is ethical...".Is the Fediverse a solution? He likes it, but "a partial one... …

Meta is connecting Threads more deeply with the fediverse - The Verge
www.theverge.com
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"Threads will now let people like and see replies to their Threads posts that appear on other federated social media platforms... [but] you can’t reply to replies “yet,”". Meanwhile, Fediverse integration expands to another 100 countries "and hope to roll it out everywhere soon".

Building Fediverse channels
www.blog-pat.ch
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"Channels enable any user to create a curated feed with a mix of post type, hashtags, lists, filters and mutes. Customised timelines which anyone can post to via their app or web UI, or by using a dedicated hashtag or emoji."This exists already outside the Fediverse: "The Farcaster app, Warpcast, has a fully formed and fast growing …

Threads on Mastodon and The Bright Future of the Fediverse
www.augment.ink
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Now that Threads has joined the Fediverse, "I can follow Threads users that opt-in to Fediverse integration through my Mastodon account" - Anuj's journey, which apparently exceeded expectations, despite - or perhaps because of - his many issues with Threads (which I share): defaulting to For You, an impoverished chroni feed, no list…

Curation is the last best hope of intelligent discourse
joanwestenberg.com

"The indiscriminate proliferation of AI-generated content will not empower the underrepresented or democratise knowledge creation... [but] dilute and fragment the authenticity and reliability of information ... the discerning judgment of human curators is the only defence against misinformation and mediocrity".Why? Human curators :"…

Nostr, a simple protocol for decentralizing social media that has a chance of working
nostr.com
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"A simple, open protocol that enables a truly censorship-resistant and global social network."They're clearly gunning for ActivityPub, with a secondary page entitled Why isn't Mastodon good enough? The key point made is that while Mastodon was OK when "server owners could be trusted to be cooperative, but it doesn't r…

17/12/2023
Bluesky: Twitter's Lonely Cousin? (#ZNLive snippet)
www.linkedin.com

One of the snippets from a ZNLive interview I did in December 2023: "emerging social media platforms like Mastodon and Bluesky face a humorous yet real challenge - they're like "Twitter, but without your friends."With the European launch of Threads, the question arises: Can it offer a unique appeal to draw users? Will [they]...…

All my toots gone
mathewlowry.medium.com
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Exactly one year after publishing Am I on the right Mastodon instance?, I discover that I wasn't. At least I got a good image out of ChatGPT for the occasion, for a change.

17/11/2023
Why I’m Finally Leaving X and Probably All Social Media | by Douglas Rushkoff
rushkoff.medium.com
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One of my favourite writers/thinkers on all things digital future is "finally, definitely, fully leaving X, and probably all social media..."

Distributed digital gardens
commonplace.doubleloop.net
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"the distributed/federated digital garden approach is the way to go for knowledge commoning... cribbing from ActivityPub's local, global, and 'those-you-follow' timelines... you could have local, 'those-you-follow', and global gardens... [with] some kind of liquid democracy", and interest-based groups, perhaps s…

Feedbot
feedbot.net

Feedbot vous permet de faire de la veille, de suivre et d’automatiser la publication de vos flux RSS favoris sur Mastodon

02/03/2023
Social knowledge graphs for collective intelligence
mathewlowry.medium.com
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The second in my 1/1/2023 bundle of 5 posts exploring collective intelligence looks at the role of decentralised social networks: "A personalised, decentralised Social Knowledge Graph for each user multiplies the knowledge available to them via a trusted network of Followers and Friends, and creating collaborative possibilities more akin to w…

A Minimum Viable Ecosystem for collective intelligence
mathewlowry.medium.com
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The "executive summary" of my 5-part bundle of 1/1/2023, which "provide a snapshot of my current thinking into how a decentralised collective intelligence ecosystem could be bootstrapped into existence."

Manton Reece - Micro.blog Mastodon
www.manton.org

"Micro.blog can now cross-post to a Mastodon user account... Your custom domain on Micro.blog can now be ActivityPub-compatible, so that you can follow and reply to Mastodon users directly on Micro.blog ... someone can follow your blog posts".As a result "you can consolidate your identity and posts back to your own blog at your ow…

Yoyogi
fasiha.github.io

Yoyogi "breaks from the timeline... elevates the author and centers the thread".Pick a Fediverse account (Mastodon for now, Pleroma and Misskey next) that you’re following and see just their threads, in a columnar interface.You need to login and give it permission: the accounts you follow are presented at left, allowing you to select one…

Am I on the right Mastodon instance?
mathewlowry.medium.com
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My second post following my personal #twittermigration: "the other users on your instance create its collective intelligence — the nearest thing you have to a content discovery algorithm".Not that I like algorithms, but "Apart from hashtags, ,,, your server’s Local and Federated timelines [are your] primary discovery channels when y…

Twitter alternative: how Mastodon is designed to be “antiviral”
uxdesign.cc
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Mastodon is "subtly designed to reduce the huge, viral surges of attention we see on Twitter" and others, which have "deformed people’s behavior... coaxed people to constantly try to hack the attentional marketplace... incessantly making posts ... operatically theatrical... enrage ... [other] high-voltage reaction".Hence “antiv…

mastodon_rss
neil.mckillop.org
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"I wanted a way to add any bookmarks I make there into a 'Read later' category in my RSS reader ... I create a PHP file that gets the latest 20 bookmarks... and takes an access token from your mastodon 'development' admin page. Then I can give this URL to my RSS reader: https://neil.mckillop.org/stuff/mastodon_bookmarks.rs…

08/11/2022
Welcome to Mastodon - Google Docs
docs.google.com
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"Welcome To Mastodon Welcome to Mastodon, and The Fediverse! This is a living document with some tips and Frequently Asked Questions about Mastodon and the Fediverse..."Pretty complete-looking

08/11/2022
RSS to ActivityPub Converter
github.com

convert any RSS feed to an ActivityPub

Welcome to hell, Elon - The Verge
www.theverge.com
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Awesome hot take open letter to Elon Musk: "You fucked up real good, kiddo... no possible way to grow ... without ... compromises that will ultimately destroy your reputation and possibly cause grievous damage to your other companies... the problems with Twitter are not engineering problems. They are political problems... absolute monarchs u…

How to Leave Dying Social Media Platforms
doctorow.medium.com
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Those who've read Doctorow's books and blogs on the collective action problem stopping people leave the established social media walled gardens may not find anything new, except for the quite brilliant link he makes with "the 1971 film adaptation of Fiddler on the Roof ... the Anatevkans can’t just pack up and leave: they are being …

Gab switches to Mastodon's code: Our statement - Official Mastodon Blog
blog.joinmastodon.org

The story on Gab and Mastodon:"After crowdfunding millions of dollars... Gab abandoned its own code and switched to ... Mastodon software in early 2019 as a way of circumventing Google’s and Apple’s ban..."Mastodon's AGPLv3 opensource license allows this, of course, but there are conditions, which Gab then broke until JoinMastodon &…

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