ActivityPub has effectively become a drop-in replacement for the constellation of older systems (OStatus etc) that the fediverse used to use. That was possible because it didn't require changes in how the nodes in the network relate to eachother. Bluesky on the other hand is trying out a completely different network topology. It's too soon to say if it'll ultimately be better, but if it does succeed, it won't necessarily produce something that could be retrofitted onto ActivityPub.
> The fact that they haven't opened up yet for other nodes makes it clear.
That's far too cynical. A federated social network is a really difficult project and there's many good reasons you might want to start with a single node.
> A federated social network is a really difficult project and there's many good reasons you might want to start with a single node.
And yet, Nostr is growing just nicely, with a perfectly reasonable decentralized model.
I was a bit involved with Bluesky early discussions. It became clear from the get-go that they were not willing to give a chance to AP. They wanted to have something they can control, top-down. Even if that means reinventing all the different wheels they are doing.
Not the point. The point is that if Bluesky really has a goal of building a decentralized solution and had seen a fundamental problem with AP, they could work on their alternative while showing how their alternative can scale better. If it they are criticizing AP but their software is as centralized as Twitter, then they are just larping.
> The fact that they haven't opened up yet for other nodes makes it clear.
That's far too cynical. A federated social network is a really difficult project and there's many good reasons you might want to start with a single node.