I get the general gist, like email different instances can communicate with each other but beyond that I’m lost.
I’m sorry if this has been asked 1,000 times lol
Edit: Thanks for the answers this makes more sense now :)
The fediverse is less like Twitter and more like email. You sign up for email through a provider, like Gmail or Outlook, and they have control over your access to the other users and pay the costs of running your hardware, the same way you sign up with a particular domain on Lemmy or Mastodon. Like email, you have an inbox that receives messages, and communities are like email groups you join and send messages to. And, like email, it’s based on standards that everyone has agreed on through a group called the w3 consortium.
So each instance within the fediverse can communicate with each other, but how do things like the feeds work? Since there’s no algorithm is everything from Lemmy.world only going to show up on the popular feed (if I’m on that instance) or can other things like lemmy.ee or whatever also show up?
And can I comment on posts from a different instance or does that vary per instance?
Sorry, last one. I noticed there are things like music streaming and video sharing instances within the fediverse, so could Lemmy theoretically allow content from those instances to be cross-posted here?
Basically to me this feels like a super modular super media platform that has tons of parts that can plop in and out of the system as needed.
You’ve got it mostly right. But this part is wrong:
is everything from Lemmy.world only going to show up on the popular feed (if I’m on that instance) or can other things like lemmy.ee or whatever also show up?
(assuming you’re on desktop browser) If you want to browse only lemmy.world communities, click on “local” at the top:
“Subscribed” is all communities you specifically subscribed to (on any instance in the lemmyverse) and “All” is everything on lemmy.world AND all communities anyone on lemmy.world is subscribed to.
(fwiw, my account is on a different instance, startrek.website, but I subscribed to this community, so I saw your post in my “subscribed” feed).
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how do things like the feeds work?
So what actually happens under the hood is when one instance communicates first time with another instance it builds some local cache of that remote instance. Then, when you open “All”, you get everything from your local instance + things cached/requested from other instances. Admins can defederate an instance, in which case you would not see anything from it.
Since there’s no algorithm is everything from Lemmy.world only going to show up on the popular feed (if I’m on that instance) or can other things like lemmy.ee or whatever also show up?
Everything federated will show up.
And can I comment on posts from a different instance or does that vary per instance?
If federated, you can both see and post both posts and comments on any instance from your home one.
could Lemmy theoretically allow content from those instances to be cross-posted here?
It could. More than that, Mastodon users currently can both subscribe to Lemmy instances and post/comment. It looks kinda weird since they mention post author/community or whomever they answer to in a comment, since they see it as if it looked like Twitter.
It’s a bunch of different websites that talk to each other.
It’s like if Facebook, Reddit, and Twitter all had the capacity to import content from each other. Then add in that most of the Fediverse’s "facebook, twitter, and reddit"s aren’t run by centralized institutions. You can sign up for an account with any of them, but the administration of the one your account is on gets to decide which other sites content it wants to import. If you don’t like the way the admins are deciding on content in one, you can again start your own or just hop to another one. The Lemmy instances are forum like in nature similar to reddit, Mastodon instances are like twitter.
The Fediverse is like if you could post on Twitter with your Facebook account or you could post an image on Instagram from your Twitter account.
Normally a social media site like reddit is whole owned by one company. Now imagine if anyone could just down load the program twitter and run it on their computer. That’s decentralized. Now if you link your twitter program to my twitter program so uses can browse both sited that is federated.
