Additionally, if the servers for an existing platform go down, users of platforms on the fediverse can retain and shift their data to another platform that is part of it.

Source: https://www.thehindu.com/sci-tech/technology/what-fediverse-social-networking-services-meta-plans-join/article67158032.ece

I’m aware that the fediverse includes much more than just Mastodon.

Source: https://www.infoworld.com/article/3687637/protocols-apis-and-conventions.html

You’ll see images from all over the fediverse and even from Mastodon, but text-only posts are filtered.

Source: https://www.infoworld.com/article/3687129/should-you-leave-facebook-twitter-instagram-for-the-fediverse.html