We are forming communities on the realized image of the internet that we were told we would have back in the 80s and 90s.
Exactly! Back in the 80s, tech enthusiasts would run their own dial-up message boards in their homes. The Fediverse is like that, but with all the benefits of modern technology. Anyone can run their own instance if they have a decent internet connection (usually fiber). But it is more than just message boards: they can run Lemmy, Mastodon, Wordpress, and even things like Tor and NextCloud, and instantly contribute their computing resources to the larger Fediverse community.