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Amid management changes at Twitter, discontented users are exploring an alternative social media platform called Bluesky. According to media , downloads of the Bluesky app surged more than 600% in April.

Initially conceived by Twitter co-founder Jack Dorsey in 2019 as a complementary project aimed to improve Twitter user experience, Bluesky transitioned into a standalone project in , and its iOS app was released in February followed by an Android version in .

Visually, Bluesky looks similar to Twitter. The timeline is called the “skyline” and tweets are “skeets”. It has two main differences that drive its popularity – decentralisation and invite-only access.

Decentralisation was a driving force behind Dorsey’s creation of Bluesky. So what does that mean and how’s this app different to Twitter?

‘Decentralised’ social media

Dorsey is a big proponent of decentralised control and cryptocurrency. He believes centralised platforms like Twitter cannot address issues such as enforcement of policies to address abuse and misinformation, and the proprietary algorithms are not meeting user needs.

Twitter uses an AI-powered, centrally managed algorithm to moderate what content the user is exposed to.

On Bluesky, however, users have control over the algorithm that selects what they are exposed to. As Wired magazine :

Crucially, users and servers will be able to label posts or specific users – e.g., with a tag like “racist” – and anyone can subscribe to that list of labels, blocking posts on that basis.

Bluesky this concept a “composable, customizable marketplace of algorithms that lets you take control of how you spend your attention.”

In addition to giving users more control over what kind of content they see, Bluesky has plans to “decentralise” control of social media even further. If all goes well, Bluesky itself will just be the first of many interconnected social networks running on the same basic principles.

Bluesky is based on what it calls the , a network that allows servers to communicate with each other. This means that, hypothetically, you could between different social networks that also use the AT protocol without losing your content and followers.

It’s worth noting this is all a bit theoretical for now; this functionality can’t be used yet.

But it is designed to eventually address the of social media influencers who fear losing their audience due to platform rule changes or when choosing to move to a different platform.

Invite-only

Another distinguishing factor of Bluesky is that, for now anyway, it is invitation-only.

Most social media platforms, including Twitter, allow users to register freely. Bluesky, however, requires an invitation code. Existing users receive invitation codes fortnightly.

Despite at least 360,000 Bluesky app , it’s been there are only 70,000 users. Media reported earlier this month there were a staggering on the waitlist.

With so many people curious to get in, the Bluesky invites became a hot commodity. You can find them on eBay between A$50 and $200; some listings were asking much more.

The invitation-only design ensures steady user growth, avoiding a rapid influx of users followed by a sudden loss of interest.

And potential new users who patiently wait for an invitation are already familiar with Bluesky. Flooding other social media platforms with requests for , too.

Every new Bluesky user knows at least one existing user. It ensures users have something in common to post about.

It would seem Bluesky’s creators aimed to selectively bring in like-minded individuals from the start, rather than attempting to retrospectively eliminate problematic users.

Thanks to a great deal of user control over the content they see, and a small and selective user base so far, many report they’ve a friendly atmosphere and good on Bluesky.

Others it feels almost like a group chat. Bluesky has particularly resonated with marginalised communities, especially , who may feel safer there expressing themselves than on other social media sites.

But will any of this last?

As we’ve all seen, social media sites come and go.

Social media site Mastodon experienced explosive user growth in November last year, reaching users within weeks, only to decline to within a couple of months.

Decentralised moderation on Mastodon have resulted in what have as a “stuffy” culture. This, coupled with the complicated interface and the hard to grasp of “belonging” to a server, may have affected its chance of lasting success.

Unlike Mastodon, Bluesky has a simple and straightforward interface. To remain relevant in the long term, Bluesky must strike a delicate balance between curbing hate speech and trolls while maintaining engaging content and discussions. All while being more captivating than your inner-circle group chats.

Nataliya Ilyushina receives funding from the ARC Centre of Excellence for Automated Decision-Making and Society.