@__dreamwalker__ 1) This might answer your question about what the Fediverse is: https://fedi.tips/what-is-mastodon-what-is-the-fediverse 2) Yes, the idea of the Fediverse is to use a federated structure similar to the phone network or email. Whichever provider you use, you can seamlessly communicate and interact with people who use other providers.3) You don't need to have accounts on other instances, for the same reason you don't need to have email accounts on other email providers, or SIMs from other phone providers.