Is anybody really surprised that a social media corporation didn't make it their utmost priority to allow their userbase to connect out of their proprietary platform?
As I understand it, the protocol has the ability to decentralize built in. But the technical requirements are prohibitively high to the point only large businesses or corps could afford to do it. I also believe (someone correct me) the company hasn’t switched on the functionality yet.
The biggest thing is that you need to be manually authorized by them for federation. They will only ever federate with servers that arent serious enough competition to lead to democratization of the overall network.
Last heard (a few months ago) the cost is in storage. The protocol isn’t too complicated now, but it generates a shit ton of data, and IIRC you need a minimum of 3 copies.
Storage is cheap whwn it comes to webhosting and 3 replicas is honestly not much when it comes to enterprise standards. I think cloud storage providers like backblaze keep something like 9 copies of data across different mediums
The "ability" to decentralize has costs that scale quadratically. So in every practical sense, it cannot be decentralized. At best it could have a few servers that participate.
No, it doesn't scale "quadratically". That's what going viral on Mastodon does to a small instance, not on bluesky. Pretty much everything scales linearly. The difference is certain components handle a larger fraction of the work (appview and relay).
Both a bluesky appview and a Mastodon instance scales by the size of the userbase which it interacts with. Mastodon likes to imagine that the userbase will always be consistent, but it isn't. Anything viewed by a large part of the whole Mastodon network forces the host to serve the entirety of the network and all its interactions. So does a bluesky appview, in just the same way, but they acknowledge this upfront.
Meanwhile, you CAN host a bluesky PDS account host and have your traffic scale only by the rate of your users' activity + number of relays you push these updates to. Going viral doesn't kill your bandwidth.