What is Mastodon?
Mastodon is a miniature version of Twitter that anyone can host for themselves. You can host a copy for your friends, or a group of people get together and host a copy for their city or interest group or community.
What's special about Mastodon is that each of these miniature Twitters can talk to each other. So you can talk to people in other places from anywhere.
Benefits
When you sign up for an account, you are now a member of that community. You are not a User being fed an algorithm, you are a Member who gets to decide what you read and who you connect with.
Freedom
Because this is just software being run on your behalf, you are not beholden to the whims of some giant corporation. You and your community members are free to make your own community rules, to decide who you talk to. If you, personally, don't like some rule change, you can move to another community, or even start your own. You control big decisions. //