How are lemmy and kbin related?

https://lemmy.world/post/72119

How are lemmy and kbin related? - Lemmy.world

I see kbin.social mentioned here and there where lemmy is discussed. How are those two related? Are they linked up, or are those completely separate communities?

They both operate on the same protocol called ActivityPub. So that mean it is possible for Lemmy users to interact with Kbin communities (or magazines, as they call them) and for Kbin users to interact with our communities.

Technically it's also possible for Mastodon (since that also uses ActivityPub) user's to reply to posts here.. It's not very user friendly, but it is possible.

Thanks for explaining. So there's no content being missed out on by joining just kbin or Lemmy right? Just a different interface and different "local" instance?
Hello from a kbin instance
Hello from Lemmy!
reply to hello from lemmy!
Reply from lemmy.world
Hello from fedia.io, a kbin instance
hello, how is there? I heard kbin.social uses cloudflare and limiting federation because high load causing errors and even my instance at lemmy.world also not responsive albeit still usable rn. how is the load and responsiveness on fedia.io? just courious.