What is the Fediverse? What does federation mean?

📞 When you call a phone number, your phone provider will connect to other providers in order to put your call through. You're part of the worldwide phone network: hundreds of independent phone providers talking to each other.

When you publish a post on here, your server will connect to other servers to distribute your post. You're part of the worldwide Fediverse: thousands of independent social media servers talking to each other.