"For the last two decades, our social networking and social media platforms have been universes unto themselves," writes the Verge's editor-at-large: Each has its own social graph, charting who you follow and who follows you. Each has its own feed, its own algorithms, its own apps, and its own user interfaces (though they've all pretty much landed on the same aesthetics over time). Each also has its own publishing tools, its own character limits, its own image filters. Being online means constantly flitting between these places and their ever-shifting sets of rules and norms. Now, though, we may be at the beginning of a new era. Instead of a half-dozen platforms competing to own your entire life, apps like Mastodon, Bluesky, Pixelfed, Lemmy, and others are building a more interconnected social ecosystem.

If this ActivityPub-fueled change takes off, it will break every social network into a thousand pieces. All posts, of all types, will be separated from their platforms. We'll get new tools for creating those posts, new tools for reading them, new tools for organizing them, and new tools for moderating them and sharing them and remixing them and everything else besides.

He's talking about a decades-old concept called POSSE: Publish (on your) Own Site, Syndicate Everywhere. ("Sometimes the P is also 'Post,' and the E can be 'Elsewhere.' The idea is the same either way." The idea is that you, the poster, should post on a website that you own. Not an app that can go away and take all your posts with it, not a platform with ever-shifting rules and algorithms. Your website. But people who want to read or watch or listen to or look at your posts can do that almost anywhere because your content is syndicated to all those platforms... [Y]our blog becomes the hub for everything, your main home on the internet.
The article argues that for now, "the best we have are tools like Micro.blog, a six-year-old platform for cross-posters." But the article ultimately envisions a future with not just new posting tools, but also new reading tools "with different ideas about how to display and organize posts."